Sometimes getting something done by the so called professionals isn't always the best option, especially if you can do it yourself. Of course it depends on how good the professional is, as they know some tricks and also can cut corners, but can be quicker. I once got a front grill and wing fitted and sprayed for a Metro, and the repair specialists had ovens ventilated dust free spray booths. The result was that every slight stone chip, ended with paint off and rust appearing in no time. So I took off the front grill, and done preparation, preparation and more preparation. Created a spray booth out of tarpaulin, and hey presto perfect job and the stone chips never got down to the bare metal again. Although I did take my paint code to Rover, and got it made up, as Halfords and Hycote paint didn't match the car colour great. Although I once got Hurricane Grey, for a Rover Maestro from Halfords and it was a great match, and great paint. Spray cans I find are OK, providing you keep the nozzle clear and don't try to be too greedy putting on too much at once. But the dust free is a must, as a small speckle, sticks out like a sore thumb, and it gives you more work. The main thing is that if you like doing it and have time on your hands then go for it.