My eGo sit and go works o.k. if its plugged in, and the 510 XL does allright if its a short trip.
The flavor issue might be a prob, I'm vaping 0mg so the flavor is the important part. Still vaping on Choc Fudge Brownie, which reminds me that I need to order some more capellas when I get some money.
I have one well used carto, and one that is about a week old. The used one is like a year old, but I keep it for an emergency backup. The new carto got broke out and filled when we started moving. Have't been able to put it back down yet. (Thank god for usb car adapters. LOL)