Just looking for opinions on this charger from Hobby King:

SKYRC Ultimate Duo 400W 20A AC/DC Balance Charger/Discharger/Power Supply

Im new to the hobby, and at 190.00 represents a nice chunk of change for me. I dont care or have the need for an external power source, and am only going to be charging a pair of 3s for my new Pro Marine. Anthing else Im missing here? Thanks to all.