I just bought one of these as well and played my first two sets (doubles) with it tonight. It was already strung with Prince Poly EXP @ 55.
It took me a few games to get used to playing with it. I agree that the power level is low - I had to take full swings to get my shots deep. My serve was slower but more accurate. Return of serve was good - especially against big hitters. Good response and feel at the net. Overall it was very comfortable.
I'm pleased with the purchase and know it will find a place in the rotation with my other rackets (PK 5G, PK 10Ki PSE, Liquidmetal 4)