*One thing that has become apparent, especially to those who have .tel domains at different registrars, is the wide gap in utility and ease of use among their respective backend control panels. Each registrar is demonstrating their "commitment" to the extension by the products and services they are providing domain owners.
Let's start a very simple
registrar scorecard based on 5 levels of overall satisfaction and using the smilies as markers thusly:

= very happy overall; would recommend to a friend

= generally satisfied; not thinking of moving come renewal time

= meh, I gotta have a registrar; guess this is as good as any

= more than a few problems;
NOT a happy camper

= That's it! I'm going postal!
First out of the block:
Moniker:

. A bit biased as I have been with them for 100 years and know their system well. I like the the fact that all of my .tel domains are in one account and can be easily accessed by a drop down menu. Very helpful when managing hundreds of domains.
Cheers,