This is built like a tank. Lots of thought went into the design of this mod. I'd buy it again. My only complaint is with access to the USB port. It didn't come with a tool to remove the screws. I could be wrong, but the average person probably does not have the very tiny tool needed. It's only used for fw upgrades, so it's not something that needs to be accessed very often though.
Great mod! It feels the most solid out of any mod I have owned and I love that it is water resistant! They also finally updated the firmware to where temp control works great. I also love that it takes 26650 and 18650 batteries as well as the new 20700 if you buy another battery cap.