The best part about this product I think would be that it was easy to use, very friendly customer support team as well! Not much dislike at all from my side but yes there are few things which could have been done better like more options for emailing etc., maybe they can add some of those features in their next release or version? If you want an affordable reliable solution try out with them first hand then only decide if its worth your time & money spent over other providers (if any).
Hosted DNS services provided by YES NIC has helped us manage our domains so far without hassle since we started using these managed solutions almost 2 years back now.