OK, here's something to think about, seeing the discussion is about enamel or acylic paints. This is the way I see it after about forty years of modelling, others will differ from these statements, but I'm sticking by what I write here.
Enamel paints have been around for at least a century or more, in that time they have managed to grind the paint particles to millionths of a millimetre, in other words it's ground into very fine dust particles.
So if your brushing or spraying, then a very thin coat will go a long way and ALL details on the model will still be left showing, ie, rivets, door outlines and such very important details, will be very crisp and clear. OH, if you have made a stuff up, then it will show for all the world to see and criticize, you got to make sure that your modelling techniques are good tried and true methods, or your going to learn real fast. It dries out to a very thin coat and if you use the right carriers, ie, turps or such, then as it dries, the surface stretches and you can get an excellent gloss finish to it.
You can use a large variety of thinners or carriers, to help the enamel cover properly, so a good all round paint to be used wisely.
Now acrylic paints, these are relatively new compared to enamel, so what were they originally made for, for appling to large areas for very quick coverage and generally used for house painting, walls and ceilings come to mind. It had one advantage over enamel paint, you could wash the brush out in water. A big down side to acrylic was that it was made VERY THICK, so that the coverage was quick. This means that the pigment is made very course and the carrier has to be thick, for it to achieve this one hit coverage.
As for getting a good gloss finish on acrylics, this is nearly impossible with just a coverage of paint, be it spraying or brushing. You now have to go buy more polishing crud, just to achieve a reasonable gloss finish. So what happens now to the very sharp crisp detail your trying to achieve, it's now covered under this crud and no amount of polishing or extra work will bring it back.
So, modellers decided to try and use this stuff, but they are behind the 8 ball, to start with, think what the pigment is ground to in enamel, now lets look at acrylic, it's made about 10 to 20 times bigger. OK, now what happens when you use acrylic on a model, it's SO THICK, that what ever detail you are trying to show, will now be covered over by this dismal $hite or excuse for model paint.
Choice is yours alone to make, but try and remember what has been written in the above postings, there seems to be a consensus that enamels are the way to go, so learn how to use them properly and you'll be glad you decided to stick with the tried and true method of painting.