“I used Xmax VITAL previously. ACE seems to be easier to clean and feels well made, but is also larger and quite heavy. Metal elements get uncomfortably hot when vaping in a warm room or in hot weather. The "haptic feedback" it uses is a crude vibration like in a 2000s phone and feels unnecessary - it vibrates every single time you adjust temperature. You can't charge and puff at the same time. However, the vape is extremely easy to load and unload, thanks to the sink-like top and the spring latch on the side.”