It really is a great kit, arguably better than the factory finish as you can put more of the finishing layers on it.
Nice thing with the Z's is you can do the seats and each door card in a day easily.
Plus they will put a kit together for you with a compressor, decent spray gun, enough leather prep, dye, sealant and matt finisher for around £200.
The compressor is better than the air cans, which can start to spit if they get too cold, which they do after a few minutes.
I kept putting them in a bucket of hot water between sprays as I was drying that coat with a hair dryer.