This is a great game, Transformers fan or not. The campaigns are a lot of fun, but I think this game shines in the online multiplayer, mostly in Team Death Match and Conquest (capture and hold points). The most interesting aspect of the online multiplayer is the different classes you can play as and accumulate experience points for ability upgrades, which are all very diverse and unique to each class (Scout, Scientist, Leader, and Soldier). The variety and strengths and weaknesses for each class makes for some very interesting and dynamic gameplay, and since you can level-up up to 25 levels for each class (plus Prime mode)...there is a lot of hours of playing there. You can always change classes, reconfigure their abilities and try different combinations. Lots of fun!
Unlike the previous reviewer, I find the transforming ability is a requirement in certain parts of the campaign, flight or not, and certainly in the multiplayer. How cool is it that you actually turn into your own getaway car or access certain sniping points on the map in jet form (Scientist) that other classes can't get to?
I took off one star when rating the fun only because of some minor issues with screen tearing (don't know if it's just my set up or if the developers could have helped it) and with some lag/connection dropping issues when playing certain maps/modes online (but again, there are many factors that can influence online play).
Overall, anyone with a PS3 should at least give this game a shot. It is definitely NOT like any of the other crappy movie-based Transformers games!