Awesome!!! I’ve used the Elite rollers only 5 times. However I’m very happy with my decision to purchase this product. I’ve used these a total of 2.5 hours so far after receiving these a week ago. There are increment adjustments on the front of the roller to accommodate different size bicycles. I made the adjustment to match my bicycle’s wheelbase. It was simple to adjust. If I can make the adjustment anyone who can use an Allen key can. Simple. I’ve read reviews that state these rollers are loud. I don’t hear that. I’ve done some sprint interval training(seated NOT standing) on these and their performance has exceeded my expectations. I needed about 20 minutes of the 2.5 hours to get familiar with the balance required. I put the rollers near a wall for safety. I hope to get at least a couple of years use out of these rollers. So far so good. If I choose I no longer have to battle freezing temps to get my bicycle ride in. I hope the Elite Arion Mag rollers stand the test of time. Oh yeah, the resistance feature is great.