I like that it's easy to use for my customers, they can easily set up their website without any technical knowledge required by them or me! It has made our life much easier when we're managing multiple domains/websites at once with different clients from around world (and sometimes in other timezones!).
They have also been very responsive whenever there was an issue during setup of new websites which were hosted through register ly platform - usually within few hours someone would get back online after fixing issues etc., so thumbs-up here as well! Nothing really dislike about this product yet but if you are looking forward having one place where all your customer information resides then definitely go ahead & try out!! Easy accessibilty across many platforms such us mobile phones / tablets too!!