I ve been going here since January. The staff has been extremely helpfull and accommodating with me over this time. I brought the wrong one at first. Then they helped me out by giving exchange with a voltage adjust ment for stronger hits. I bought a new one recently mvp. Which if I can recommend any it's this one you can adjust the power and voltage and display a puff count will also charge certain things phone fit bit ps3 controller.These people have bent of backwards for me on multiple accounts at their own expense. They are great people with excellent customer service highly recommend.