I just bought a set of Logitech Z623s for myself (and my flat) for xmas. I plan to use them for parties and listening to music in my room. Obviously I'm no audiophile but from what I've read they're just what I'm after. Can't wait to try them out. But enough about my stuff, what do you guys have? What do you use them for? Are they any good? What would you replace them with?