Wonderful texture pack. Best I've seen so far. Placing blocks just because they look nice, and I've never done that before.
I love the way birch looks (always hated it before now); also very much enjoy dead shrubs, obsidian, tree leaves (especially pine), and netherrack. Netherrack now actually looks good, and that's more than enough reason to DL the pack. Theme in general seems like a modern art deco, which will make you want to build with something other than smooth stone for once.
Signs could use some work with fitting text and looking good on other block types. Glowstone looks oddly bland, but makes good ceiling lights and pot lights in certain area. I also think torches could use a more distinct look.
Here's some screens:
From Minecraft Piano Map
From King's Public Faction Open PvP Server