Since were are giving opinions, I've got a few also.
The H-525 is a very nice, durable model. It's got enough depth to sound decent unplugged when practicing alone. The sound board support helps reduce feedback. The trade offs compared to the H-530 are a consideration. But the H-525 has the more awesome factor in appearance.
I had a H-575 with P-90s. That was a fine instrument but had more feedback issues. The acoustic sound was nicer, but that's not the target of such an instrument.
There is an option for those who don't like the hum of the P-90s. First, there is the Hum Debugger. Second, there are many hum-free P-90s out there. Third, Use both pickups but put the bridge one as low as possible and lower the screws to reduce any bridge string signal while taking advantage of the reverse winding of the two pickups.