About Legendary´s lost achievements

Most of the cut achievements were minor. I definitely don't miss them. I particularly noticed they'd trimmed the fat when I had to make a specific effort to get ME3's "Hijacker". I've completed this trilogy over 100 times. I have no desire to chase cleverly devised trophies in ME.

ME3's Gunsmith seems pointless, as there's no skill involved. It seems to be there to force a NG+ import. It could've been cut.

We get the associated perks in ME1 automatically (+XP) or far more easily (reduced requirements for "Use X ability Z number of times").

I don't much like The Citadel DLC, aside from the Lancer and Armax Arsenal; but you're right. There definitely should've been an achievement for beating Vega's record. That was very time-consuming. (I did enjoy Citadel in its original context. I just don't enjoy it in 99% of playthroughs.)

Surviving all the waves in Project Rho was a fun one. Now, only pride keeps me from setting down the controller to speed along the story.

I don't like the slipshod integration, with Aria "returning" to the Citadel after; but I really enjoy Omega.

It has some of the very best designed combat encounters in the trilogy. We get two new squaddies to assist. Nyreen's skill loadout could've been incredible on a permanent squadmate. We get Rampart Mechs and Adjutants; two great opponents that I would've loved to see throughout the game.

The visuals are crisp and colorful. The set pieces are great. How cool is that eezo mine?

I really enjoy Omega a lot. I'm usually very high-level when I start it, low to mid-50s, and often reach 60 before leaving. High-level Shep with new squaddies, new foes and new scenery? Count me in.

Edit:

It also addresses the question, "What about the Collector Base?" Save it or destroy it, Cerberus will definitely try to salvage tech and intel. Controlling Omega is an obvious step for them, gaining easy access on "our side" to the Omega-4 Relay and controlling the heart of the Terminus Systems.

In Karpyshyn's novels, we learn a bit more about Omega. It was a Reaper construction and "plant", just like the Citadel. It was also entertaining to get the Reapers' thoughts on the mishmash alterations organics have made. Unsurprisingly, they are unimpressed.

Those are all fair criticisms. Something on the scale of LotSB would definitely have been great. I like Omega well enough for what it is.

I didn't play ME3MP. Were the dragoons similar to or the same as the ones found at Armax Arsenal Arena? I really enjoyed those tougher opponents. I would've loved if any of the core games had tougher, or at least more varied, opponents.

I think the fear of Adjutants was more lore-based than mechanical. The first Adjutants turned all their prey into more Adjutants. That would be terrifying. Cerberus figured out how to turn-off that conversion.

Mass Effect does many things well. Boss fights is not one of them. I have always viewed Vasir as simply padding to extend the length of the DLC by giving you an uber bullet spounge