I think the player is nice, but lacking in some respects (humanization).
Honestly, with such limited articulations and techniques in the Synchron Strings, I wish I would have saved the money I spent on the pre-order and purchased Spitfire Symphonic Strings. You get a complete set of beautifully recorded in-situ strings, multiple mic positions, with little lacking in terms of techniques and articulations (sordini, col legno, spiccato, sul tasto, sul pont, flautando, harmonics, brushed, digs, runs, falls, etc. etc.), don't have to wait forever for a player (runs on Kontakt) and there's a brilliant Universal Articulation Change Control system built in (I have one ruleset that controls ALL my Spitfire libraries, whether it's strings, winds, whatever).
The money I spent on Synchron would have got me more than halfway to purchasing a mature robust beautifully recorded in-situ library.
I frankly see the articulations and techniques available in Synchron as very limiting. I will go to my Spitfire Chamber Strings instead every time for a more subtle nuanced sound.
And I don't intend to pay hundreds more for expansions.
Disappointed.