Yep, I downloaded the Vita version just so I could listen to the soundtrack on the go, as I couldn't find it anywhere online. It's also nice to keep a backup save file on the Vita using the cross save feature, as my PS4 save file got mysteriously deleted somehow.
Well, those are two completely different styles of video games, so it's mostly just a matter of personal preference. But OlliOlli does benefit from being a one-character game with no AI. The AI issues with pitcher/bullpen management was Super Mega Baseball's biggest downfall.
The controls definitely take some getting used to, especially if you're coming in completely fresh without having played the first game.
The best tip I can give for performing tricks is to make all of your joystick motions quick flicks instead of slow drags. The move detection is meant to recognize quick flicks of the joystick. The slower you perform a trick motion, the less likely it is that you'll get the animation you want.