I bought one last week. I put it on my FX board in a loop of my Boss LS-2 so I can use it for all the now-and-then fancy FX stuff, and keep it out of my main signal path for the rest of the time.
(Consider me biased, but I don't trust a 50$ multi-FX unit too much.. Although that's based on nothing and its probably no problem...)
For anyone who is curious: I measured the actual current draw of this FX unit at 120-130mA.
So it's completely OK to run it for example on the 250mA output of a Voodoo Labs PP2.