Oh! Trt. I forgot to reply specifically to you. Firstly, well done for making the effort to quit fags! I do agree that filling the liquid can be tricky and a bit time consuming, but less effort than having to go out and find somwhere to buy a packet of fags when you've run out (and we all know that feeling, fellow smokers)! As far as burning back of throat with vaping, I cant say I've felt this. Maybe taking a longer "drag" can do this. The thing is, there are so many products out there it is a case of finding the right one for you. But keep on keeping on anyway.