I've got one just like it. It's ok for the money. I blew up - as in exploded - the water trap and I was only at about 50 psi I think. I used my own water trap and it woked fine. The spray hose is also not real durable for extended use, but holds up fine for occassional use. Mine cracked in several places, but I just duct taped it back together and it is still working fine.
For the money it's hard to go wrong in my opinion. This blaster works WAY better than the cheap gravity or siphon feed guns.
Ryan