Or basically any other hosting company owned by EIG – check the full list here: http://en.wikipedia.org/wiki/Endurance_International_Group
Basically the bottom line is that their quality of service took a nose dive once they were acquired by EIG. Hosting outages, changes in customer support etc. I have friends who used Hostgator primarily even for reseller hosting and most of them have switched away from them or are in the process of moving away from them.
Are they the worst out there? No. But there are definitely better.