I used to use it a lot, that was when i was doing my finishes by hand with a brush.
now stuff gets sprayed and sometimes its used, sometimes not. it is definitely easier to spray than brush, but a good finish can be got by brushing it if you are patient and sand back regularly and use a damn good lacquer brush
It tints well with spirit based stains
You can do 3 coats a day or even more no problem. if you start again with 24 hours you can carry on like that. If you have to leave it past 24 hours than give it a few days before applying any more or it will wrinkle.
coats applied within a day will burn in, coats after that 24 hour period will not so that is when you get the possibility of witness lines
You can buff it to a high gloss after a week, although it will still sink in a little after that.
Its a very hard wearing finish, but not really brittle like nitro, it will dent rather than crack.
this is the last one i did with a brush. wood was stained, RPC was clear. buffed by hand: