Painted a bike frame with the Valspar rattle cans(bear in mind I have painted loads of stuff previously with rattle cans from various manufacturers previous and know all about good prep) anyway the paint goes on nice, however its about as durable as tissue paper you could rub the paint off with your thumb.
Stripped it and did it again with some Halfords rattle cans(about 1 of the only things Halfords seems to be good at) and had no probs.
Regards water based Gloss, tried some Aldi stuff and its truly shite, not glossy, goes on streaky even after several coats and again you can peel it off.
Now using Leyland trade which is sublime in comparison.