I haven't used the Maxo, but I have used the Zenith and will never try iJoy again. It would autofire at maximum voltage, regardless of how low I had the potentiometer, within seconds of having
batteries put into it. The lock feature didn't work either. Seemed to me that safety wasn't a concern and I sent it back within a day of use. The Zenith had 3
batteries in an unsafe
mod, I hate to think what a 4 battery version would be like...
On the other hand the Maxo has upgradeable firmware so maybe any bugs will be fixed and it will be safer and it does look a lot more comfortable than, say, the HoG mod, so maybe it's fine. I certainly wont be giving them my custom.