OK i just wanted to say this, from ashes sucks.
I'm comparing it with mass effect 2's Kasumi pack.
They both gave a character. The prothean is a lot more important story wise to the game, but Kasumi is much more likeable. Hell Zaeed is more likeable, the prothean is boring. The character's skills are pretty unimpressive too. Just some basic biotics with another power that's useless unless you specialize in biotics or micromanage Liara to hell.
They both gave a mission. Kasumi's mission was 10000x more interesting and longer than from ashes. from ashes basically involved finding an artifact, going into a few prothean flashbacks to figure out how to open the artifact, and then getting the prothean. There was nothing really special about the mission itself. The location was boring and you pretty much ran around the same small area for like 10-20 minutes, no special fights like the rooftop gunship fight with Kasumi, no special visuals (other than the short flashbacks).
Other than that, from ashes gave a new gun that's like the collector laser from the last game but much weaker and with infinite ammo. I didn't use it for long. Now i just give it to teammates because lasers.
Kasumi had more content and a more likeable character. It also cost less than from ashes, and you couldn't unlock Kasumi by fudging a bit of code in your install. (yes, the prothean is on the disk, his mission and his room isn't. make of that what you will).
I think what happened is they originally planned to include the prothean into the game, but couldn't finish it in due to constraints. When EA (yes, i still blame EA for everything)saw that they had an unfinished character, they said "hey, slap a quick lazy mission and a bit of story over that character and send it off for 10 bucks". So now we have a DLC with a boring mission and a character that should have something to do with the main story(he's a prothean, he should have something important), but doesn't.
Personally I'm not against things like project 10 dollar. I can understand that they would want to profit a bit on used game sales (if i buy physical copies, i buy new. I like to support the developer). I especially like it when they add extra incentive to new games (like the Cerberus network in ME2 with its free Zaeed)
If this was a "buy the game new" incentive, i wouldn't have a problem with it. Unless you bought the special edition, this DLC isn't worth it.