i'd say we're both happy with ease and functionality with the topbox, we are having issues with cravings(upped the nic content with his main flavour, i use it more so 6mg seems to be working for me), but since they are our first foray into this... we knew it might be a bit of a struggle to change. before it's said, the drip version would not work well for him, he's a mechanic with our own garage and he really doesn't have the time or patience to set it up each time he wants to use it(plus he would destroy it rapidly with all the stuff he handles daily).
i've managed, so far, to go from a deck a day to a deck every 2/3 days and know it's not going to be an instant change with me... but it is working and that makes me happy. we've barely touched the surface of this, like i think i know what you mean with MTL and BTL, as in getting it into my mouth and then inhaling or inhaling directly... i know i want it as close to a smoke as possible, the kranger seems to be that.
i'm a hair over 5', big and bulky doesn't appeal to me and my small hands... i would like a biggr tank and more battery life definitely and flavour is very important to me, but i also can't keep pulling over to refill either, as i am the parts/customer driver for our garage.
he wont like it,(paying out again) but i am going to suggest to him i guess to get a backup of the ones we currently have, we've already bought spare tanks and batteries anyhow.