Has anyone tried....
 

A Gazelle elliptical trainer? If so, what did you think about it? I'm thinking about buying one since they are under $100. It also says it folds away for easy storage, which is great for me because I have limited space. I just want to make sure it will be effective before I buy.

I have a gym membership, but would like something to use at home when I have no time for the gym.

Thanks!