I use a spray can for all my primary colours like black or white.
I have just finished Showtime 100 , using a citadel models semi gloss white.
The finish is really nice ,the coats are not too thick but it covers much better than an airbrush , which can take days to get a satisfactory colour depth on a large kit.
The best thing is that the propelant helps to dry the paint in less than 30 mins.
Tamiya spray paints are nice too , but not much paint for your Euro.
I now use Tamiya acrylics in my Badger 200 and they are much easier to work with than enamels.
I changed over in 1987 and never looked back since.