This sounds and looks very good. Really affordable, too @ $299 for the pro version. I just spent $225 for just the Synchron upgrade to my VSL Dimension Brass I library (I skipped updating Dimension Brass II for the moment). In comparison, $299 for the whole pro version library (including mutes) is dirt cheap.
We're in a whole new world as far as library pricing goes. I like it, but I fear it might squeeze the little guys out. Major companies can make it up on volume. With Spitfire pushing prices of major new products down, other larger sample companies are going to have to look at their pricing structure.
How are you liking the Synchron Brass? I wasn't even aware of it... did they record new material?