I liked ME3 for the most part. The original ending was horrendous, no doubt about that. It was redeemed by the Extended ending DLC and the rather amazing Citadel DLC though so I give Bioware some credit for trying to fix their original cock up. As a shoot 'em up it was a fun game although the RPG element became almost nonexistent. Hopefully we'll see better RPG gameplay and storytelling in ME:A, similar to the original.
I wonder how the DLC for ME3 sold. I was genuinely insulted by that message at the end too.