I love my Vamo, despite it's size I use it at home and on the go, but lately I have been getting misfires, where it will only fire for like a second then nothing while i'm pushing the button. The next time I push the button it will work fine, maybe the next ten times then I will get another one. Not a huge deal, but I am concerned that it will get worse over time. Wondering if anybody else was having this issue, and if so does it get worse, would hate to have to buy another one after only having this for a few weeks.