I guess there's no ultimate consensus. I used to use Nufinish but yeah it's not good for trim so I went to Meguires Ultimate Quik wax which was pretty decent, went on quick but only lasted a few months. I just started using Turtle Wax Hybrid Ceramic spray coating. Seems pretty decent, you don't have to use much and it's supposed to last a year if you give it two coats. I don't think it's even been out for a year though. A bit tougher to apply than Ultimate Quik wax but did last longer.