So both guns run perfect, the entire package was solid, good construction no need to assemble or any crazy stuff you sometimes get when you buy quality items at low prices. The name brand says it all, the price made it to good to be true, but it was almost perfect. My only complaint comes from not being a seasoned user, in fact this was my first set. It took some online research to learn adjustment and setup of the guns and a lot of time was spent making sure it was done correctly. Well several tattoos done, several existing tattoo re-colors, and several line works later everything still works great, and it gets better. The guns almost seem to run better with use. Maybe there is a break in need, or maybe it was me, either way WOW this is great, fun, quality product. I highly suggest it. Light in the Box made the purchase easy and had the shipment delivered way earlier than they expected. I AM THRILLED with the experience... 10 STARS!!!