Please Help me decide which one to get?

hi…im very confused if i should get Horizon T500 treadmill or Proform Crosswalk Caliber Elite…

Any suggestions?…a friend told me horzon pst6 is pretty good…but i dont know much about that either

i would say anyone one is good as long as u can run on it but u should she what kind of modifications they have then decide or base it on the price