So played the game now 3 times (Once on the Xbox360 and twice on PC).
First what I didn't like:
I liked the game, but I really miss all of the RPG elements. I miss the number of weapons, I miss the armor customization. If you could have taken elements from each of the other armors that might have mitigated it. I wish the levels were less like levels. I miss the open ended planets. I miss the breath of powers the team used to have. I feel it went too far in cutting things out. The scope feels much smaller. I remember being in awe of the citadel, walking from the one end to the other of the ring section. It needs to come back. I know it's harder to craft a game that way but I don't think the first game suffered for it.
I missed being able to go through the entire ship.
I missed the loot, going to shops and trolling for items.
I didn't like that after the ending only the crew respond.
I didn't like that money was so scarce and had to be frugal so I could keep the ship flying. Could have fixed that if you could sell resources.
The clip system doesn't make sense. Doesn't make sense that technology would get worse between games, for "interchangeable" heat sinks it's funny that they only work with each gun, that it's not a shared clip system regardless of gun. If I'm out I should be out on all weapons.
I guess my main complaint was that the game was too dumbed down.
I didn't like that anyone can hack now. Seemed weak.
I listened to the Reviews on the Run episode and they were right if it was any other game but a sequel it is an excellent game. But because it's a sequel that is almost a different game.
What I liked:
The dialog, and character interactions and loved the depth. On my last play through I decided to stay faithful to the original romance and found the new dialog options with Samara and Mordin because of it. I liked the Garrus and Tali dialog in the citadel talking about elevator rides. My only complaints are I wish there was more, and I hated the Sheppard trying to be "cool" with Jacob.
I loved the combat, it's more of a change on the Xbox, used to some of the new options on the PC. I liked the increased focus on targeting powers against the defenses of the enemy.
The quests were very cinematic. I loved the personal quests, the N7 ones seemed less alive although the missile and special cargo quests were pretty good. Almost no one talked tough. They could have been longer, a few anyways, the Tali, Thane and Samara loyalty quests could have been longer. Particularly Thanes seemed weak. Although the dialog and story progression were very well done.
The way you separated the weapons was nice, they feel very different now. I really wish I could use the scope on the assault rifle or feel like I have more open spaces to really use the sniper rifle.
What I want next:
DLC that allows the world to progress, would like the citadel/alliance/universe to react,
DLC to really find out how they kept you alive, I mean seriously I think I'm half Reaper/Husk/Geth technology.
DLC for opening up the citadel and other areas.
DLC to maybe help Zhu's Hope of the colony that got hit with missiles.
Maybe a DLC that just create Random encounters in space. Captured ships, bases, etc. At least give people something to do after the end game.
To get back the rest of your powers. I feel naked without stasis, and Tali/Garrus seems like half the person she was.
To be able to go everywhere I have gone before.
To get more weapon options, (for heaven sakes Modern Warfare had more options).
To have more armor options. (for heaven sakes Rainbow 6 had more options

)
Bring the epic back, a run and run through the citadel ring or omega, or vehicle racing/chase, something that makes me feel really small. My favorite moment in all the games was the run and gun from the Ilos to the citadel tower with Sovereign towering above me. That was awesome.
Some of the rest of the crew back seems like they have built in big missions that are asking for resolving in the sequel. Even the existing crew, Tali, Legion, Wrex, Liara, Modrin, Ash and the Alliance, Council all have huge issues remaining that I'd imagine you need to resolve to get them back to help against the Reapers.
To go back to everywhere you've been and in the current game Ilos, Feros, etc. Even to see Earth. I want my eyes to go wide again. To have that feeling back when you first landed at the citadel, or the encounters on the other worlds. This experience felt tightly wrapped.
More big bad guys, I could count the armatures on one hand in this game. If I add the robots and Geth primes maybe all my digits but in the last game.
I'm going to play again and try and be more of a bad **** and see what's different.
I liked the game, heck that's 120 hours of my life I'm not upset about losing I guess I just feel like you've gone off and changed on me and I miss the good times. Sounds like I'm projecting the Liara change, but I'm not. I think.