I ordered a 2010 Camaro in 2009 and made the dealer swear on a stack of blue books that he wouldn't wash it. I took it home and immediately hand polished and sealed the paint. I took very good care of it for the last 2.5 years polishing and sealing every chance I got. Car rarely saw rain and was never dirty for very long.
Last month I switched to the PC kit from Adams. Since my paint was already in nearly perfect condition I wasn't expecting a big difference with the PC.
However - I was blown away by the depth of shine I've been able to obtain with the PC and the Fine Machine Polish, sealant, glaze and wax.
It was a lot of work to do the strip wash, clay, PC, seal, glaze and wax and it took two days but it was definitely worth it. And maintaining that shine is super easy. I don't see myself doing any more than "spot fixes" within a year or so.
Disclaimer: The hand polish system I was using was NOT Adam's. It IS, however, a high quality and much lauded system. You may be just fine with the Adam's hand polishing system.
I'm glad I went with the PC.