Mass Effect 1 seems to be pretty great on PS3. I'm happy they went with L2/R2 for aim/shoot, since I'm playing PS4 primarily, and it's an easy transition.
I'm glad I'm returning so long after finishing ME3, because managing your party is so much more involved in the first game... collecting new weapons and armor like mad just in the very first mission. Ashley's cool looking White/Pink armor didn't last long though... got replaced within minutes. I was tempted to leave her with it just a bit longer, but would be at a disadvantage if I did.
Plus the way targeting works is a shock, how slowly your members focus their aim at the beginning. Sure to improve as I level up, if I recall.
Mass Effect just feels good as an RPG... too bad they went full shooter in the sequels.