Adjustment is fantastic, makes a low pressure gun just sin.
On / Off valve has minor leak all the time.
So far I am very impressed with the Maxflo set up. I am running 400 PSi into my mini reg and shooting 225FPS. I usually get a +1 to +2 FPS during chrono but for the most part it stays pretty consistent. When I got the tank and Max Flo reg the company had used red lock tight on the fitting for the output from the reg so it was very hard to change out the quick release that comes standard with the Maxflo. The on / off valve leaks when it is in the off position all the time. minor leak but it is still leaking. Shipping was very quick and so far Smart Parts has been great to deal with. I will post again after I contact them about the leak and I have played more games with the setup.
I would recommend this setup to anyone with a low pressure gun. Sure does seem to work well with my Speed, Keeps it quite and fast. As for not being able to disconnect the bottle from the gun who cares ? Well unless you have only a small place to store everything then I guess it could be a pain. However for me there is no need to remove it . If you get hit in the Maxflo it is a bit hard to clean up. However clean up is part of the game you keep your gun clean and it will always work when you need it to.