I love my 2 iSticks but have been paying close attention to the Joyetech eGrip thread for awhile. With the advent and good reports for the eGrip rba I ordered one each and received them Monday afternoon. Had some initial leaking problems but found some left over manufacturing contamination on the device/coil mating surface in the device and fixed that problem.
The eGrip is ~30% wider than the iStick but with a mini Nautilus on the iStick the eGrip with drip tip is ~2" shorter in height. It lacks any digital readout or numerically marked settings on the adjustment dial. Given that it provides in combination with the stock rba coil/wick an outstanding vape experience. The rba comes with 2 replacement coil/wick assemblies, a small screwdriver, a short length of kanthal wire, wick material and 2 replacement o-rings for the princely sum of ~$12.00 from Cignot.com., one of the most reputable vendors I know of.
I really like my iSticks but so far, despite the stated deficiencies imo, I absolutely love the eGrip with the rba! Bear in mind I already own Provari's including a P3, 2 Semovars and you name it.
With these new mini devices I'm rapidly getting over the huge tube mods when equipped with 18650 batteries. When these tube mods are configured with 18350's the battery life becomes too short.
What a long way things have come since I started nearly 5 years ago! To use a movie line "these are great days we're living bro!"