Features:

• 1,700mA @ 9V DC on a common ground
• Plug-top style design

Advantages over the Diago Powerstation:

• Reasonably cheap, usually around £40/$45/€50
• Is even nice and small (only a little smaller than the Powerstation, but smaller nonetheless)

Disadvantages with respect to the Diago Powerstation:

• Requires a power strip on your pedal board to plug in to!
• If not used on the pedal board, the thin output lead becomes prone to damage on the floor
• Known to have 'whining' clock frequency clashing problems with some delay pedals
• Will technically work in any country, but requires the correct plug adaptor