It's a godsend for me. My back trouble has flared up again recently and have been having sessions with the osteopath again. I'm 45, slightly overweight still but consider myself to be reasonably fit, I run, cycle, play football etc. I did a gig last night using my Music Man Bongo, TH500 and Barefaced Big Twin 2. It sounded huge, so for me, no tonal compromise compared to previous rigs I've had. I was home alone when I had to load the car to head to the gig, if I was still using my old Warwick WCA cabs I honestly don't think I would've been able to lift them at the moment!