Looking into buying a treadmill. I see a lot of people like the self-propelled ones with a curved deck (Woodway, TrueForm, etc.). I'm a little concerned that some of that the TrueForm seems tied in with CrossFit and some of the self-propelled brands make promises about "burning 30% more calories," which seems stupid. I just want the best, most natural running feel I can get.
So...who's tried one of these?