This is my first PCP pump and I wasn't sure about that I wish to buy one, so I chose a fairly cheap option. And I did not regret it! The pump works really well - of course time will tell how durable it is really. I was able to fill my 0.8L HPA tank to 3000psi. Yes, it is hard at higher pressures, I had to lean my whole body weight on the handle (note, I am ~75kg), otherwise I wouldn't have been able to do it. It was a nice workout and needed some time to reach maximum pressure, because I left the pump to cool down occasionally. But looks like everything is okay. It is pretty straightforward to use, it was assembled, only some screws needed tightening here and there and was ready to start working. The manual is pretty useless as mentioned by others before, but I don't see why the fuss is about how complicated is to start using this unit. I only complicated things because I read the reviews before, but then I found out that it was simple. :D I will come back later when I'll have more experience with it.