Got my elliptical put together last night. My friend has a Nordic Track elliptical that is worth 800 bucks. I can go on that thing for 10-15 mins without a problem. Mine is a Gold's Gym 300 dollar and after 2 mins my thighs are burning and my heart is at cardio rate. Seems funny the expensive one doesn't kick my butt like this one. Got to get over this sinus problem so that my head doesn't feel like it is going to explode when I am doing it.