Hi jb, fine thanks - just covered in silk emulsion as I have been painting the spare room ceiling before my sister comes next weekend...
You need to make sure the tiles are clean and grease-free before you start, and apply the paint carefully so it doesn't dribble - but the effect is really good. I did mine about eight years ago and apart from the odd touch-up, they still look good. The transfers do help to break up the plainness - just a few here and there in a geometric design.