Pros: Wonderful workout, no stress on joints, and very very quiet machine.
Cons: I don't have anything negative to say about this piece of workout equipment at all.
We recently purchased the ARC for our home gym and it is by far the best piece of equipment I have used in years. It gives you a GREAT lower body workout, I saw a change in my legs and I've dropped 5 pounds in the past 2 weeks of continual use and now I am addicted. I use it everyday. In 20 minutes I can burn 300 or more calories. It has several different options to choose from, weight loss, interval, cardio, strength and manual. So you can vary your workout from day to day. Very comfortable to use and absolutely no strain on my joints. VERY quiet machine, no need to crank up the TV while using this.