Details sanders, well over the years I think that I have had all of them.
My first one was the Ryobi, think it came out in the early 90s. It would really give your hand and wrist a good work out, talk about vibration. I finally threw it out.
Next Bosch came out with one, I liked it and still do, just couldn't get one that would hold up. The motors kept burning up. Had 3 of them before I give up.
Then I got a Porter Cable, it's a joke. I've used it a few times when I had nothing better to do and didn't really want to accomplish anything. Anybody want to buy it.
Now I have a Fein, it works pretty good. Can't really say anything bad about it. It sands as good as the Bosch did and I have had it about 3 or 4 years and I haven't burned the motor up yet. Plus it has some attachments that really work well also.
I have not used a Black & Decker detail sander, but my experience with other Black & Decker sanders has not be good.
To me the Fein sander is worth the money