I have owned this bike for about a month and have been using it almost daily. I can say it is an excellent and efficient workout. I bought it because it takes up very little space, has a comfortable and adjustable seat and because it offers an upper and lower body workout at the same time. The extra large fan blows cooling air on you as you power it, which is a feature I really appreciate. It is excellent for HIIT workouts and offers a seamless transition from easy to very tough resistance with the speed of pedaling. I love this bike and I would recommend it to anyone looking for a good at-home piece of cardio equipment. The only major drawback it has for me is the noise it makes. The two major noises that are considered normal are the loud clicking noise from the chain and the very loud whirring noise from the fan, making it impossible to listen to music or watch tv at regular volumes. Since the noise from the bike can disrupt other tenants, it is not very apartment-friendly.