they are really rather good. I think Tatty mentioned the diy minx ones a while back, I saw some dead cheap ones in my local chemist so I gave them ago.
Well for £1.99 - £2.99, 15 minutes max, of my time with a cheap nail file, nail scissors and a hair dryer I'm rather pleased. Especially as they last longer than polish.
They don't look professional by any means (not unless I took at lot longer), but a friend was admiring them and pointed out you'd have to be about 6" away and looking properly to know.
I don't really belong in these 'ere parts
, but if your're debating trying them they are very easy 