I only had this device for about a week now sense time of this review and so far I can say it seems to be a very solid device both in build quality and performance. The pictures don't do it justice but once in hand Wow, very nice device. I didn't knock off any stars for it but the only thing I didn't like is the software needed to update it and such. Wasn't the easiest software to use at first and it was a learning curve just trying to upgrade the firmware on the device. I do love being able to add my own pictures as well. I use paint in windows 10 to change the resolution of the pics I put on it to 150x150 and they seem to fit perfectly. I haven't tried to add a picture at its native resolution so not sure if that works and I'm not sure if it tells you anywhere if it does because I didn't read the instruction book.
I can also say that this thing fires pretty quick with a 0.15ohm dual clapton build running at 65.5w and the preheat set to powerful. I will have to update this review if possible down the road after I've owned this device for a few months so I will see how well the device held up by then as well as how well the sx-500 chip holds up. I use Sony VTC5A batteries in it that I've had for about 2 years now and even with those it lasts most the day depending on how I vape, however, with a brand new good set of batteries and normal vaping throughout the day this device can easily last the day at 65-75w range.