I think it’s a great time to jump back in. I think the competitive meta is healthier than it has been in years.
The banned and restricted list is forcing players to make more interesting and difficult decisions during deckbuilding and can even make for a fun mini-game within the game if you don’t know your opponent’s deck (i.e. the runner installs Magnum Opus so now you know that they can’t have Film Critic).
Rotation/Revised Core removed a lot of cards that had always warped the format including: Jackson, Caprice, Desperado, Medium, Parasite, Account Siphon, RDI, Andromeda, Kate, Whizzard etc. – resulting in a more open playing field. Generally speaking there is a lot more experimentation going on right now with ID’s and strategies that were ignored pre-rotation because they were overshadowed by stronger cards.