It wouldn't let you carry it over?
Yep. ME1 to ME2 was flawless, same character appearance. ME3 on the other hand was like, "we can't carry over your character's appearance because yadda yadda, please pick a default or use the custom creator"
This happened because between 2 and 3, Bioware decided to change/redo facial mapping and such things so they could have more emotions shown through faces, but the cost was that some characters appearances made in ME1 and 2 would not make it into 3.
So I was forced to play as Vanderloo instead. My character's decisions were fine, his relationships were fine, his story was fine, but it was another man living his finale.
That was one of the biggest issues I had with ME3. It killed enjoyment of the game from before the first second of cutscene/gameplay. Don't tell me I'm gonna get to carry my character through the entire series if I can't do that, and the visual appearance is of HUGE PARAMOUNT importance.
Because DA switches protagonists all the time, it doesn't run into this problem. Well Hawke came back in Inquisition and she looked different than she did in DA2, but I'm not a fan of Hawke nor invested with her like I was with Shepard so with her it didn't matter.
With Shepard I cared SO much(favorite gaming franchise at the time) and it was like they were telling me my character was dead or didn't exist.