I've had one for nearly four years. I love it. My only issue is with the ventilation. I find the fans a bit loud for me and, as it draws in air from the room, it gets too hot for me when my place is hot in the summer. I don't have any problems with the sound inside being too loud and mine is 4' by 6'. I bought it used and it cost me more to ship it than the purchase price. Still it was delivered to the door of the building, it is modular and I just rolled the parts into my apartment. I can practice 24/7 with no complaints. I may look into upgrading the ventilation but usually take a break every 40 minutes or so, open the door, take a stretch, grab a cold drink and I'm good to go for another session.