I guess it depends on what you want to get out of it. The single most useful feature for me is the game analysis and reports after playing the computer, or just from a given position. I also do a lot of puzzles and probably watch a few vids per week.
Anyway, there’s the trial membership, so you can see for yourself what it’s like.
It's nothing to go through 100-200 puzzles in a day. I would take the platinum, at a minimum for the puzzles and the game report.
The lessons are really great, but I don't think I have done 5 lessons in a week since I signed up