While the library limit was first a disappointment for me, I've found over the last few days that browsing by folder works well...if the structure makes sense. As I have it now, I sort by Album Artist\Album so I can drop into any album and play, with or without shuffling. But, I don't always want to listen to a single album by a single artist. Being able to start playing at any level of the folder structure would be a nice way to play everything by the artist.
Hopefully a more robust playlist implementation is coming soon. The 'Favorites' function is seriously lacking in that I can only add a single track at a time. Being able to easily add multiple tracks/folders to the Favorites at a time would be great.