There is a small number of things that I miss from 1.0, but they really have very little to do with the game itself. I miss having points and upgrades on cards, but the ability to have FFG tweak those for balance is well worth the tradeoff. Also, if I’m being honest with myself, I used a squad builder more often than not, so it really is a wash.
I also miss some of my favorite pilots who didn’t make the cut (Tycho and Rebel Ahsoka, for example), but then we got all new factions, so that weighs in favor of 2.0.
Everything else about the game itself is better in 2.0 in my opinion. I can see all the maneuvers a ship can make without buying dial upgrade kits, 1.0 turrets are gone, absurd levels of passive dice mods are a thing of the past (while some passive dice mods still exist - usually as a finite resource), regen was fixed without being removed, ordinance is good without being overpowered (although some more missiles would be nice), certain upgrades that used to be autoincludes that restricted list building were just removed (looking at you, VI), Resistance and FO became their own factions (now Disney just needs to actually have some space battles with new ships), and of course, what brought me back to the game: Clone Wars factions.
2.0 isn’t perfect, but it’s a lot better than 1.0.