Jenny, Oooooh, I'm slightly envious and glad for you. Anytime I start using a new-to-me piece of gym equipment there is a short time where I'm not very comfortable with the motion: joints, muscles, ligaments, etc. Soon you'll love it (if you don't already) and wonder how you managed without it.

Next: a set of weights, a bench and BFL. Your Nick will be surprised at the hard-body wife he has. LOL