I bought an Apollo SprayMaster1200. I have only used rattle cans before and so approached spraying the whole car with trepidation. The instructions were clear and straightforward. I practiced on our fridge to get the mix and pressure right. I had a curious mix of brilliant success and some disappointment where my skills needed honing, but the gun performed well. One area to look out for is that when switched on the gun is blowing air constantly, so be careful where you point it as you may stir up some dust - I ended up putting dust sheets up the walls. Another thing to watch out for is that the hose is quite rigid so you have to be careful when working round the car that you don't pull it over any of your work. All-in-all, I was very pleased with it.