Things I liked: faster and easier to pump than previous benjamin pump. moisture trap. gauge visible when pumping.
Things I would have changed: the pump may fall over when not on hard surface. you need to be careful outdoors. pump would be more stable with a larger base
What others should know: my benjamin pump collected moisture inside and failed due to vapor lock, after going up and down the sierra mountains to the mojave desert several times, due to condensation. it had no moisture trap. the hill does. haven't taken hill to the mountains yet but will next weekend. just got the pump this month. if the hill does get condensation even with moisture trap (although doubtful) can always rebuild it, couldn't do this with benjamin pump