I have a joye 510, and an eGo passthru, I like them both, and the eGo does have a slightly better vape, but that could be due to the fact that's it's plugged in and gets full power while my 510 has been sitting for a few hours without charge. I normally keep the 510 loaded with 18mg
tobacco and use it for when I have cravings, and use the eGo for my all day flavor vape, with 12 to 14mg. Just my point of view, and experience (just now tried them both with the same carto one after the other lol) Also might mention, the 510 is auto, while the eGo is manual, might have something to do with the better vape.