I stopped after the ghost trial I think? I stopped once when I got to the ruins city, and kinda forced myself to pick it back up, played until the ghost trial, saved, and haven't touched it since. At first it was the wild area that kinda fell short for me. Now I don't really feel a sense of accomplishment with my Pokemon, and the story is obviously pretty poor... The games kinda just didn't do it for me this time. It's a shame. I think the forced exp share kinda ruins it for me, cause I really liked Sun & Moon. I also never finished PLGP/E for pretty much the same reasons.