I recently bought a GFS Sweet Sparkle Compressor. My intial opinion is it's built very rugged, jacks and switch appear to be heavy duty and long lasting. The wonderful way it makes notes and chords "bloom" as GFS says, is very true. No pumping or swooshing of notes and chords, extremely transparent, non-tone changing and the two controls, output and sensitivity are nicely effective throughout the entire range of sweep. I am looking to maybe get the Bluesdrive pedal as well. Does anyone else have any experience with these pedals?