I bought one a few months ago because of ease of travel but I can not seem to get a good spin or flow. It seems like I am riding with a flat. It feels like there is uneven resistance during the pedal stroke. When I blow the tires up to 125ish it is smoother but still not like the kinetic trainer at home. I have not used traditional rollers so I am not familiar with the "feel", maybe this is normal.
The rollers spin okay manually. I always make sure there is equal contact between the rollers and the rear wheel. I have used it on carpet in a hotel room but have not tried a harder surface.