We've owned a few treadmills and each of them ended up dying quickly. When my knees started to bug me, then we started to think about getting an elliptical. We wanted to invest wisely this time so that we wouldn't need to purchase a new one 6 mos down the road. We talked with the salesperson about our concerns and he recommended the Precor EFX 5.23.
We are really enjoying this elliptical. It doesn't have the moving arms. I always had trouble balancing while holding on to those things, so I didn't want them. The incline and the resistance are adjustable and it has 14 different pre-programmed routines for your exercising pleasure.
This machine will even store the info for 2 users. It will use that information to display a more accurate tally of calories burned. It can also be used for the heart rate monitor graph. This graph displays when your heart rate is in the weight loss zone or the cardio zone and even lets you know when you are working too hard or not hard enough.
While you are using it, it displays your number of strides, your calories burned, and distance traveled. I like to keep track of the total number of strides I managed per workout as it gives me something to compete against.
The strides are smooth and comfortable. I don't feel awkward at all on this machine. I feel we made a great purchase and it is the one workout I have been able to keep up consistently.