So I purchased the eGo One after hearing amazing reviews of the device. I use an Aspire Atlantis on an MVP 3 but needed something more portable for work/going out. I was more than impressed with the eGo One using the .5 ohm coil, and equally so with the 1 ohm coil. The battery life is great, the flavour is perfect and the vapor production is unexpected. However, within 2 hours of using the .5ohm coil, the vapor began to taste burnt, more than on any other wick I have burnt. So until I could get hold of another I used the 1 ohm coil. 24 hours that one lasted. joyetech said they would send me replacements free of charge, but while waiting for this I went to my local shop and bought another .5 coil. 1 HOUR LATER, it's frazzled. Wether I'm just being unlucky or the device is faulty I don't know, but I am incredibly disappointed. It's not through a lack of priming or using the wrong liquid, I'm an experienced vaper and had fully primed the wicks for 20minutes minimum and was using a 50/50 juice. This device had great potential, but it will be going in the bin for now (except the battery, which even does a great job on my Atlantis)