Very impressed with this little pump. I tried inflating a road bike tire with the auto air compressor that came with my car and the pressure didn't go above 55psi. I was pissed that it wasn't going to happen so I bought it with the fact that it said it would inflate my tire to 120. The max pressure on my bike is 90psi, so I didn't try to get to 120, but I had no problem inflating my tire to 90psi. Without reading the instructions, handling the pump is quite easy. Just set the pressure and it will automatically pump to the set level. Comes with built-in light. The pump is very well made, the only complaint I have is that it's so good I don't want to damage it by dropping it on the floor. I wish they made a rubber or silicon case for protection.