Very large library of...? It's good at videos, as long as you don't dump/add a bunch all at once and expect to have everything functioning within a coffee break. DLNA, or direct connections without all the tagging/info/images/etc might work quicker... can't say I've tested that.
I tried adding about 16,000+ MP3's... after an hour and a half, I gave up, killed the app, proceeded to uninstall and remove the zillions of left-over XML files (side note: do not suggest installing on an SSD unless your ok burning them out), and then re-installed... tried the same with I'm not sure, about 8,000 or so images... not happening... remove, clean, re-install... (ok I'm a bit OCD there, but even with a couple hundred videos, there's thousands and thousands of XML files generated... that shit annoys me)
3570K OC to 4.2... 8GB DDR3 @ 1800 CL8... SATA3 SSD...roughly 500/500M/s for installation drive, SATA3 1TB 64MB 7200 mechanical for the data being accessed.
If yours is working well for you, great... but I wouldn't consider it a primary choice, I'm forced to use it for my (LG) TV... otherwise I wouldn't even touch it ever again.