Just received my Punch Factory and Bass Exciter pedals from Aphex. Using them with my Ashdown rig with Ampeg cabs and firstly the compressor (punch factory ) is superb true bypass and adds compression as you need brilliant. The Bass exciter takes a bit more tweeking, its the original Aural exciter type of thing ( not BBE Maximiser ) and it is far better than the previous BBE unit i had tried. It adds real sparkle to your sound and bring in the Big Bottom low end feature and its like adding an extra set of cabs. This is not an eq type of gimmick but a genuine pedal that improves on a good tone already. Fills the bass out so for us single guitarist type of rock bands it sounds huge. I am very pleased and there is no downside as again true bypass so you dont lose any of your original sound. Build quality is good, sound quality is superb even when used with top of the range gear. Worth a try if you are looking for that bit extra, good for punching thru the mix.