Pays very poorly, about 58 credits for three hours crunching (<500 credits a day)
Still in Beta, tasks may be cancelled at any time, tasks may not get credit, server isn't always available.
Single threaded, no GPU applications, Linux and Windows, haven't noticed a preference yet.
On the plus side, it's exporting stats so your and the teams progress shows up.
UBT currently second in the UK ... out of three
Mark