I really enjoyed this game. The intro was killer, that's for sure, however the heroic speeches at the end were a little disappointing. They weren't bad, just not great. And the last boss was pretty neat too but just plain too easy.. Again, disappointing. It'd have been much better if ALL of the bosses were like the last boss and the last boss was made more epic.
I must admit, the game started to get a tiny bit repetitive, however I didn't mind it so much.
The repetetiveness came from the fact that over half the game is landing on planet after planet doing recruitment missions. Granted they were all pretty unique and offered epic storyline/situational value, it just seemed like you were beating a freshly slain horse.
The weapon variety could have used a little work, meaning you could specialize in a type of weapon but there weren't any choices when it came to "Use this generic assault rifle or this machine gun-esque one that does more damage?" If you found the 'better' version of your gun there was no point at all in avoiding it. What I wanted to see was "Use this upgraded assault rifle, this other upgraded assault rifle lacking this but gaining this, or this exotic assault rifle which is harder to use but in the end, superior?" Just more depth is all. Could have went even further, too.
I didn't mind the resource gathering so much since I didn't find myself going back to it hundreds of times. I did have to scan a few planets yeah, but all in all it was a nice break from the normal game play.
If you don't want to get tired of resource gathering then take your time with the upgrades. Get what you need over the entire span of the game, not all at once. Don't go for every single upgrade, just the ones that effect your unique combat strategy. IE medigel capacity and damage reduction for the 'warriors', bio damage and shield strength for the biotics. Shotgun damage? Only if you use the shotgun.
I really would have liked to see more enemies too. Not trying to nitpick so much, just trying to express my feelings for it all. Fighting mercs is fun but there could have been a lot more variety there.
The game pretty much consisted of a few eclipse mercs, a handful of blood pack goons, and a lot of blue suns. Throw in a few mechs and at the end, collectors, and you've got ME2.
But I guess that's the point of ME2. Like I said, the game was still very enjoyable but it did have some downfalls.
There's probably more to add but I need to run. Anybody share my thoughts?
EDIT: Oh and I almost forgot, I would have really liked some alternative action gameplay; IE mako driving, ship combat.. skateboarding? SOMETHING.