real difference between Gold or Platinum and Diamond?

My 7 day trial is running out and I'm trying to decide between plans. I remember lower levels used to have Lessons per week restricted.  Is this still the case?  also having difficulty assessing difference between game Review and "Coach" (verbalizing content of game review?).  OK I get the suggestion of Lessons and Tactics but is there really much else going on with Coach?  I doubt I would bother looking at Insights - doesn't seem useful or even mildly interesting (to me, ymmv)

My aim isn't to criticize anyone or anything by asking - just wanting information to help me decide... thanks.

If you look at the membership page, it explains what is offered. Gold plans purchased after September 1st of this year have unlimited lessons and puzzles. Platinum adds unlimited Game Review, and Diamond adds Coach Explanations and Insights.

yup I looked at it several times but got confused by old forum posts complaining about Lessons per week - unlimited Lessons was a VERY good and necessary change to have made, imo. 

Care to opine about other difference between Game Review and Coach apart from verbalizing Review and suggesting Tactics and Lessons?

Looking at older topics is going to be discussing the older feature sets. As to coach, I personally don't pay much attention to those at this point 

I want there to be some compelling reason to go Diamond apart from verbalizing the Game Review and suggesting Tactics - the Insight thing seems like a Python programmer in search of a cause.    What am I missing?  anyone..   ???

Why are you looking at forum posts?

https://www.chess.com/membership

I may have a skewed view of it, so take it with a grain of salt...

... I think website anslysis (chess.com, lichess, or other) is crap, marketed to beignners who don't know any better. Sure I often use browser engines to quickly check tactics, but if I'm actually interested in a game I use stockfish on my PC. It's faster, goes deeper, the interface is cleaner, and I have more options.

The only reason I bought a membership is I felt like puzzlerush was helping me drill some tactics, and lichess' "puzzle storm" was not because they were too easy.

I've had a diamond membership off and on for many years... I don't think I've ever once watched an intructional video... but that doesn't mean I think they're bad. At least in the past there were a lot of videos by GMs and other titled players, so that's probably a reasonble source of informatoin. If I were new I'd probably enjoy that sort of thing (don't waste time with videos on openings).

so opening videos are crap in general or just the ones at Chess.com?  or beginners need to stop blundering before worrying about openings?

Yeah, pretty much.

I mean, we've all done it (me included) so you might as well do it too. Go ahead and memorize a dozen different variations of an opening, each 10 moves deep. Then play 100 games and decide how much that improved your results (spoiler, essentially not at all).

Titled players put out tons of videos and books on openings for a few reasons. One reason is it's  the easiest type of book to write. They can open a database and dump variations and games into the book. A video is even easier. Another reason is amateurs love to waste time on the opening, so there's a big market for it.

One thing I don't see people mention much is even after a person learns the opening principles it doesn't mean they're following them closely enough. Until a person is pretty high rated, IDK, maybe 1600, it's worth reviewing your games, and checking to see whether you actually developed as efficiently as possible, and in games to challenge yourself to develop faster. An easy exampe is wasting time on comfort moves like a3 and h3. Was it necessary or did it just make you feel safe? Another one (more difficult to stop since it can win you games) is early attacks which are played just hoping the opponent doesn't see the threat. That's an inefficient way to begin a game since you're moving the same piece(s) 2 or 3 times each.

It's kind of funny, you can actually see the progression. A beginner develops 1 or 2 pieces then attacks. When ratings get a little higher they develop 2 to 3 pieces before attacking. Then 3 to 4, etc.

But yeah, in the grand scheme of things, that's not a lot of work right? Just thinking to yourself "should I really be moving this piece a 2nd or 3rd time before move 10?"

In all likelyhood, your openings are probably just fine, and you're better off spending time on something else (tactics, strategy, or endgames).

I will mention that... let's say as black you're playing 1.d4 d5 and then game after game, over and over, by move 10 you really hate your position. That's a good time to open a database and go over the game you just played move by move to see what the typical options are. Maybe you discover, oh, I've been playing Nc6 on move 3, but that's the 10th most popular move, so I guess it's not very good. Pick one of the top moves that's attractive to you and play that instead.

So then you try some games with that small adjustment. IMO that's a useful way to approcah openings. Of course bulk memorization can be useful later, but I think it's a very common sense approach to wait until an opening is causing problems, and then fix it with as little effort as possible.

you should consider writing a book, the no-BS Guide to Chess or something - I'd buy it.

Free -- No access to a cc

Gold -- Minimal need for the site

Platinum -- Mostly at Lichess

Diamond -- Main chess hangout

I don't get the joke. Is this a reference to something?

It's confusing to me too, but maybe it's like this...

They think chess.com is pay to win i.e. that a gold member has an unfair advantage over a non-paying member. Sometimes they say this because they think premium members get specalized training, but some people say ads cause the game to go slowly, or chess.com punishes non-paying members by forcing them to lose against bots or other crazy ideas... so they say gold is the minimum.

They say paltinum is lichess because they believe lichess offers all of that for free.

Should i get diamond membership for this summer? Im really thinking about it

What? I am a gold member and I have unlimited game review.