Not my experience. Total, PIA with a Mesa cab that I bought used and the owner didn't have the receipt. Ended up, he bought it at a GC and I called GC to get teh receipt, but they wouldn't give it directly to me. Had to back to the original owner, then I had to fax it to Mesa. THey had the serial number and new it was registered to the guy I bought it from. What more do you need than that IMO. GK service on the MB2500 is way better than my experience with Mesa. GK-No questions asked-we'll make it right type vibe, Mesa chip oin shoulder vibe, want to make sure no one is trying to slip one past us type feeling. All IMO, but I have never being satisfied with Mesa CS. Products yes but CS always leaves some to be desired for me. Way to get me started Vic.