I just upgraded to this Tesla 160W TC Metal and I love it. I had the Tesla APV Mod for years and just went from tank to tank until the APV finally started having firing problems (button not working or working in pulses). I have always enjoyed Tesla and it has been very durable. I bought this Tesla 160W on Ebay fingers crossed if I get an authentic piece of hardware and amazingly it was real. I tested it on my Aspire nautilus and really awesome is the only thing that comes to mind. It has easy button, a simple display and a nice size firing button. Although, I was able to program more things with my APV like the Voltage, Wattage, and a menu of stuff to change. The 160W has adjustable wattage, flip screen, lock screen, and un/lock wattage and that's it. I thought it was less programable, but definitely doesn't lack in power/cloud and the carbon fiber look gives it a nice finish. I did upgrade to a Aspire Atlantis to try out the sub ohm and it works great at 32 watts with a NJOY Hedon's Bite, it starts to get warm on the 3 puff. I hope this may help those out there testing new mods. I bought my Tesla 160W here you may find it cheaper than me, who knows.