I have been operating laser machines from a variety of companies for several years now, and Boss Laser has hands down been the best company to buy from. I once purchased four LS-2440s for a business that we ran up to 12 hours per day without any major issues. About a year ago, lightning struck the building and killed two of the machines' power supplies. I called Boss Laser, and they had replacements at our door the very same week. They provided detailed documentation and over-the-phone assistance to get us back up and running again. This is why when I decided to purchase a machine for myself last month, Boss Laser was 100% my first choice.