I had a Qloader on my Ion for some time but, I also had problems with it. So, I switched to the Warp Feed and I love it! The only thing I don't like about the warp feed is the width the setup adds to your gun. Not a problem for shooting but, makes it hard to fit and use a sling, and it's hard to fit the setup in any PB gear bag. I have mine intellisynced to my marker and it shoots perfectly
Shameless plug:
As of now, I've gotten rid of the APE board and instead I've just put in a Virtue OLED board and I am currently rigging the Warp to run via the RF connector on the Virtue. If you have an E-Grip, there shouldn't be a reason why you couldn't wire the Warp to the E-Grip solenoid.