2 hour games are good. You need to be able to play those.
15/10 v 30 min


that's interesting about the blitz; i havent played a blitz game yet- i could barely handle a 30 min game without timing out but the sensibilities behind the reasoning for playing the shorter times sound similar to what i was told today
my teacher recommended 15/10 in order to increase number of games played and was pretty down on the 30 min live games as far as "online" games were concerned
he basically suggested: "play in one of the club's tournaments with a 2 hr limit if you want a real chess game; and use the "online games at 15/10 to get lots of practice getting through an opening and exposing one's self to as many games as possible" as an example
fwiw it was a blast playing otb games with helpful and encouraging players; i'm already scheduled to play my first tournament next saturday and my next lesson will be going over those games
being a sub. to john bartholomew's channel one hears much of the same; he really stresses that 15/10 time as the "sweet spot" for online games
what do you more experienced players think?