For the last ten years+ I've done all my domain-stuff through Dynadot, and all that time I have been mystified that these guys aren't far better known than they appear to be. Prices are decent, comprehensible, and stable. UX is okay. Not spectacular, but absolute useable. Great flexibility with whois records. I have needed support
once in those ten years, and that was my own bloody fault for having forgotten which birthday I signed up with. Even so, help was prompt, polite, and efficient.
Looked in at the competition from time to time - NameCheap, GoDaddy, whoever - just to see what I might be missing out on. The experience was always sobering and ugly to look at, and every time, I ended up dragging my new domain over to Dynadot.