I like that they are always there whenever we need them, whether it is during our business hours or not (which makes sense because who wants their translator working all day when someone needs help in an hour?).
Also if things go wrong with work done then your issues will also resolved quickly without wasting time waiting around forever especially since these guys do so much more than translations! They don't have too many features but those few which exists works wonders together. This means less stress from me about my projects being completed correctly/on schedule while allowing myself some personal life moments outside of project management responsibilities;.