I am a physical Therapist and perform a lot of bike fittings for clients. Getting the rear wheel off and the bike into our direct drive trainer has always been an annoying pain point. Ensuring you have the right adapters on while holding the derailieur in place a getting your hands covered in grease and grime before entering data into your computer or taking measurements of your client. The chain lift has helped solve all those problems. I now have one at home too which makes bike maintenance even easier and swapping out wheel sets on my gravel bike is easy.