Yes, but as was posted, it takes a lot of work just to make it compete with the default experience of other classes. A soldier doesn't "need" a mattock to dominate, and he doesn't "need" any sort of bonus power. Same with engineer, sentinel to some degree (Geth Shotgun makes him so much better though), infilitator. Vanguard definitely benefits from stasis to a large degree, but still solid without it.
Adept works now, but if you played it at around release, before the locust, before the mattock, before stasis, it was generally the worst class. I suppose one of the classes is going to end up being the worst, but... I enjoy playing EVERY CLASS EXCEPT ADEPT.... AND I LOVE CC ORIENTED CLASSES. That's just... wrong.
Let me just say all this is applicable just to Insanity. Adept rips stuff up on lower difficulties just fine; it is just the fact that EVERY ENEMY has protection which is the root of the problem. I've got a feeling that the protection issue is going to be somewhat diminished in ME3, but maybe I'm just optimisitic. I want to like playing an Adept in ME3 just like I enjoy every other class.
I started the Adept run just to have something to do and make it challenging. I was told things like, "Adept's are too squishy" and "Set the difficulty low". Ha! Turns out that she wasn't that squishy after all. Oh! far from it. She could shield up and stay in there, right beside Rex and Ashley, with dominating results.
I still enjoyed running her through ME2. You just had to deal with shields. This prompted more control over your squadies and dropping the Shuriken for a better SMG, along with the use of tactical approach. I agree about the DLCs. It would be different without those additions.
EDIT : Funny...I can't remember what my fav weapon was, with the adept. With age comes Short Term Memory Loss, the plus side is that each playthrough has that new feel to it.
Playing the Vanguard has to be my favorite, so far. Nothing can come close to the vibe I get from executing that Charge, followed up with an old school beat down.
I am starting an Engineer run from ME1. We'll see how this pans out.

I'm on the BW forums and they won't let me post at all, can you help?
/snip
My advice is to stick with this forum.
That's very good advice, no matter the issue.
