Nice paint job. Regarding the baked on "sandpaper" bbq grime, the only way I know to remove that is with a dull metal object (I use a flathead screwdriver). If anyone has a better way, let me know. Oven or grill cleaner doesnt seem to do the trick.
Its brutal. Nothing really works easily. I use Easy Off, soak, rinse, scrub with SOS pad.
I may try some straight amonia in a spray bottle and let it soak for a while. If I ever get around to it, I may invest in a low cost Soda blaster and try that. I fear that it will scratch the finsh.
It the bain of grill cleaning, its like super cement.