I like the customer service, how quickly they answer questions about their products or pricing! They have many helpful tutorials that teach you what to expect when registering domains with them.
There are not a lot of options available if searching for more obscure names in some categories such as tech-related industries which may be harder to register but is still possible using other companies. Be sure to check out all your choices because there can be good competition among registrars! We registered our business' website address since we were trying to get around having to use a local phone number and email addresses, etc. It was a great option to keep everything centralized.