I also couldn't enroll for the beta and I'm assuming it's because my service provider, Telcel, is in Mexico and the beta isn't available in Spanish. However, that said, I've been a Google user since the Nexus 5 and this year I looked at the Pixel 4, read reviews about the Huawei camera, and decided to try Huawei.
There was some trepidation and I held onto my Pixel 3 like Linus holds onto his blanket. Now, eleven days in, I've decided to jump ship. I'm not a fan of EMUI and if I had the choice I would run stock Android but it isn't a perfect world. I'm adjusting to EMUI 9.1, will adjust to EMUI 10, given the chance, and am delighted with the camera.