The good news is that I don’t have to buy one, my gym has just added two of them. They seem fairly complicated; I’m going search for a YouTube video to see if there’s an introductory video.
I’ve been using the elliptical machine for cardio in winter, at least it has a view of the outside so I don’t get the hamster on a wheel feeling. But, I’m thinking the peloton bike might be a nice alternative and I really need to focus on more cardio to lose weight.