Ugh. I used them for a year or two. Sure, it was easy signing up...but when I had multiple domains to renew every year I had to uncheck a dozen "option packages" on 4 different pages just to renew a domain. Transferring out to another registrar is even more of a pain. Despite following the exact steps required Godaddy still denied the transfer saying I had not responded.
I made sure to tell them the sole reason for my transferring my business to another registrar was solely based on their annoying website. I'd gladly pay their outrageous fees for things such as WHOIS privacy if only their website offered a basic, functional, non ad-ridden UI for managing my domains.
I sincerely hope one of two things happens: Either nobody buys them and they go out of business; or another decent company buys their assets and flushes the brand down the toilet. I know--I can dream.