The small charge as you go, now discontinued e-cig was really a good device with a good range of cartridge flavours. The new maxx e-cig which I have just purchased is very heavy to hold and with a shiny surface slips through the fingers. Not very pleased with this device and also do not like the very bright light which shines when you inhale. The end needs to be darkened considerably. I also have the e-pen which is much nicer to use and my preferred device. I am still using the stock pile of cartridges bought when I discovered my original small e-cig was being discontinued due to some ridiculous government warnings. OK for the politicians to happily smoke in the Houses of Parliament!!!!!!!