My husband bought me a bike one year for my birthday....not one of his smarter purchases.

It was a Mongoose Mountain bike. My butt and back hurt soooo badly!
i think the key to finding a good bike (along with it being easy to pedal) is making sure the seat doesnt hurt your butt and you're not hunched over when biking.
i guess my point is to definitely go to the store and sit on it and see how it feels to you AND dont take my husband with you.