If you got one or want one, ramble here! I think that this is a great revision to the Airport Extreme and AirTunes is a nice addition.
Of course many will say "I did that XX years ago on my PC with winamp" - stfu, you've not seen the 'beauty' that is OS X
It's small, portable - but not *cheap cheap*, but if you hunt on eBay the going rate of a new sealed unit is £70 + p&p.