I've been using the Tank MX twice in my basement for a little over 1 year. No issues with build quality or performance and the tires are still at full pressure. I've only had to air them up once at initial assembly. I decided to buy this + a rubber roll over a traditional weight-loaded sled + turf roll. From my research it seemed that the rubber roll would hold up longer than a turf roll, so I went with the Tank MX option. I use it for strength-endurance movements inspired by Ben Patrick: push down, pull back by walking backwards with tow strap. My space is 58'L x 5'W. The Tank is huge, and combined with the tow strap length + my body I probably only travel 40' in each direction which feels short / less than desirable. I wouldn't recommend it with any space smaller than mine. The tank will BRUTALLY expose any asymmetries by drifting/turning slowly and it's hard to correct for. This is a pro and a con because while helpful, it makes the workout far more annoying than I imagine a traditional sled would. Whenever I use the Tank, it's set to max resistance level + MX mode. This resistance is "strong enough", but I wouldn't want anything less and wish I had the option for more resistance. That said, after 15 laps I'm gassed and my lower legs and feet are on fire. (For reference: I'm 195lb, regularly jog 4 miles at around 9:00min/mile and a few months ago did front squats at 225lb for 5x5). While I don't intend to sell the Tank MX, I wish I had gone the traditional sled + turf roll option.