we use it at the fire station, my Capt. (58 y.o.)has been at it faithfully for 2 go arounds
(doing the complete 90 day workout) and honestly is in better shape than us young guys! (he does the plyometrics with a 45lb weight vest......crazy bastard )
as soon as I get the things I need to do it, I will be doing it more than 10 days a month, and would recommend it to anyone.

KFP