I doubt it but I really hope if you click on the picture below to enlarge it you can see the difference between one, two and three coats of paint.
|from the left one, two, three coats|
I have only ever done two coats of paint but as this is intended to be my 'best build to date' project I thought I'd go the whole hog and give the woodwork three coats. Honestly, in real life, I can see the difference and think it is worth doing.
It is only worth doing if you and the chosen paint can do three thin coats otherwise at this scale it will just look gloppy.
In my case the thin finish is achieved by using Cuprinol Shades (garden paint!) which soaks into the wood leaving a slight sheen and helped further by rubbing down between each coat to denib the surface,
You can then slightly age/dirty the wood with the usual mid-tan shoe polish and a buff or just leave it as is.
I have chosen an off-white colour (Pale Jasmine) so I am happy enough with that as my house will have been fairly recently decorated.
Indeed the hall has been pale grey and then Jasper Cane yellow and I am now stewing on papering it with a Regency stripe.