totally agree.. I think that they do a great job with the ambient sounding delay heavy stuff but Im not blown away overall. Dave P is a good guy for sure...
Many of those boards sound similar in the demos because the client uses Dave's recommendations of reverb, delay, etc pedals.
Also, the demos are thru the same Diamond amps (clean channel) not the client's amp.....and the demos are done with the way Dave dials the stuff in, which is heavy on delay and reverb.