My mom's got a haze 40. The input jack had been repaired with flying leads after the pcb in that area snapped. Some thin-ass PCB in there.
Also, once or twice, I've had problems with it dropping in output a little, usually after it's been on a while. Maybe it's still related to the input?
That's all I got about the haze series and reliability.
The tone of the 40W is pretty cool. Have you checked that one out yet?