snom has wholeheartedly joined the “Lync revolution” as indicated by today’s announcements.
I have not looked at the snom UC600 in person but it appears to be similar to the Polycom cx300 and Plantronics Calisto P540 models. One thing I can say about reviewing those models is that this is one of the nicest USB phones I have ever seen. I will include those videos right here as reference. [note that snom UC600 may have more/less/different features, but a good guess is that they will be similar]
snom UC600 Webpage: