I have a pw-70a / 120 (same thing, they just decided to rate it higher)
So far, Im not too thrilled with it.
Yes, it will work fine, yes it spits out +/- 3v , could damage something. yes you could easily regulate it, but - The first one I had died during testing... the replacement blew a fuse when I added my LCD (still well within the ratings for current draw)
My pw70 is sitting in a box, and will continue to do so for the forseable future.
I bought an opus