My first encounter with Huawei is a Mate 10 phone, and I found it to be very powerful, and the price: very competitive! I can buy a top of the line Huawei phone for the same price as a Samsung midrange phone, and don't even mention iPhone. I was able to root the phone as I got is around April 2018, before the closing of the BL unlock service. And since my main reason to root my phone is to get rid of annoying ads, I wanted to go back to Samsung. Custom ROM is another reason.
Now that I have found how to block ads even with non-root phones, I am 'freed' from Huawei's non-rootability problem. I am running DNS66, and AdClear. I am also running Youtube Vanced and MiXplorer, apps that are basically ad-less. And yes, I have given away my Mate 10, and I now have Mate 20 X. Indeed!
So yeah, I'll be buying Huawei phones and enjoying their super performance and capabilities!