KiSS have had major issues in the past with the stability of their firmware. I've had a KiSS DP1500-S for about a year, and I've gone through about 5 different firmwares (mostly 3rd party) attempting to get the thing to run properly. Wireless networking is the biggest issue - it's so flakey I eventually reverted to a wired connection.
KiSS have recently been acquired by Cisco (branded as Linksys). I suspect that a greater emphasis on testing may be responsible for the delays. If the firmware is stable it'll be a good product and worth the wait. If however the firmware is as unstable as previous models you can expect to be spending a lot of time downloading and testing different firmwares.
Don't get me wrong, they're fundamentally good machines. However I'd want to see quite a few rave reviews from long-term users before I'd buy another one.
Ill be waiting for some reviews from you guys before i place an order so i hope its as good a product as it looks on paper, ive beenholding off buying the Snazio as i think the Kiss looks a better quality product from an asthetic point of view,i just hope it works as well as it looks.