Play in a Beatles Tribute where power, clean power, is always a concern. We typically play 2 60 minute sets with a 30-45 minute sound check and a 15 minute intermission... I power the unit on prior to soundcheck, and it will last until I power down at tear down (usually 4 hours later).
It powers: Boss TU3, Sans Amp Liverpool, Jekyl&Hyde, T Rex Yellow Drive, Carbon Copy, Line 6 Verbzilla, and a Radial A/B/Y. Granted that the pedals are not on a lot, most songs are clean, but this thing has been great.
It's small, mounts easily, came with enough plugs for my needs, is super easy to operate, and charges pretty fast.
I'm going to get one for our "Paul"s bass board too!