I've been using Crap Away for quite a while. It's been very stable and I like not having to give a second thought to clicking on all the white's and grays to get rid of them, every time I turn in a quest, or go to a vendor.
Autorepair seems less useful, as it's only one click, anyway. But then, it probably doesn't have much of a resource footprint, so whatever floats yer boat, I guess!
I also use Bag Sort, and I love it...all I have to do is type /bagsort, and it does it's thing, quickly and well. /banksort works, too, for, yes, one's bank.
-"Just like a buzzin' fly, I come into your life, I'll float away, like honey in the sun..."--Tim Buckley