Killer paintball is one of the most helpful paintball shops in the Detroit metro area. Some stores claim to have a gun technician on staff full time, but this place actually sticks to that claim. I go there for almost all of my paintball needs, and they even were nice enough to fill my 5lb. CO2 tank that other stores in the area said they wouldn't. They are helpful and give great directions to the store if you're not familiar with the area. Their prices are decent, pretty much industry standard. Air fills are cheaper than other places ive found.