Features:

• 5 x 9V DC outputs on a common ground (not isolated)
• 450mA total current available

Advantages over the Diago Powerstation:

• Very cheap, usually around £20/$37/€29

Disadvantages with respect to the Diago Powerstation:

• Only 5 outputs and 450mA total. Could quite easily be overloaded with a few digital pedals
• Known to have problems with hum due to poor filtering
• Doesn't have a detachable mains cable
• It's big and heavy, and takes up quite a bit of space on your pedal board