I am not a box mod fan in particular, but have fallen in love with my VS rDNA 40. I never (well - rarely) use the full 40 watts, but all of the other functions (like being able to fire on virtually ANY ohm coil safely) are priceless. I was waiting on the P3 for my next big purchase, but at the last minute decided on the VaporShark. At this point in time, not only do I have no regrets, but am grateful I went VS over P3. Incredible quality - no limitations.