I've upgraded 3 bikes to 2 sets of wheels each. I always hated removing and putting on the rear tires. It was a slow and unenjoyable process. I'm not an expert using Chainlift yet, but switching rear tires is no longer a dreadful task. Now I can switch from a set of training wheels/tires to a performance set easily and quickly. Changing wheels out is so much easier now. The only criticism I could even imagine is wanting a compact unit for my Jersey pocket for our riding. Customer support is great, I sent a couple pictures of my setup and they sent me pictures and suggestions to make it easier. A slower version of the process on a couple of different drivetrains would be awesome. Enjoying using the Chain lift and keeping my hand virtually grease free. Best bike tool I've ever used !!