About 6 months ago I did a ceramic coating using about 25% of the kit I bought for about $15 ( liquid/spray bottles / cloths) Its stud out all winter and I brush washed it about twice.
Looks great to me apart from the cat paw marks !

 

Looks great.

Can't say enough good things about ceramics. Did one about 4 years ago, (Gtechniq CSL, a 'little' more expensive, with a top coating of Exo), and it still looks great. The top coating was supposed to be more fragile, but it still acts like better than new wax. Gave away almost all the "wax products" a couple of years ago. Probably will wait another year and just put another perfunctory top coat on to see if I can make a decade.

 

Looks great! Just to note that none of the spray bottle auto parts store products are a true ceramic coating. The full up ceramic coatings are several hundred dollars just for the materials and will no kidding last 4-5 years before you need to refresh them. They also require a LOT of prep because your paint has to be essentially perfect before application, a true ceramic coating has no ability to hide flaws. I had both my E63 and Gladiator professionally done, it’s an amazing product.