Tunk,

I have both , but I tend to use the jack and jack stands more often. I can never get centered on the ramps in just one try. It's up, down, adjust the ramp, up, down, adjust the ramp. I also need 2x4's in front of the ramp so I can get past the front lip. The ramps seem rather limited in use (mostly for fluid changes, I guess) where the jacks can be used for all this plus brakes, wheels, etc.