Hrm, usually I'd say the following:
"I'd rather have no amp at all than use something like this one"
only I have actually heard this amp perform, and was sort of impressed with it. Granted it's no old school rockford or kicker, but for the price it's not a bad deal.
One of my co workers has the exact same amp pushing 4 6-3/4" Pioneer 35RMS speakers in his truck and the amp did a fairly decent job of it. At high volumes you can really hear the distortion coming out when cranking Fear Factory.
Check on ebay, you might find something better and or cheaper.
I tested one of the new Pioneer GM-4000P amps when they first came out, 35RMSx4@4ohms, I saw one the other day for 85 bucks or so on ebay, new.