The N8, even though it is apparently scratchproof, is a slippery little thing, and can quite easily be dropped. I ordered this case, as for £5, it seemed a bargain for an official Nokia silicone case (especially when you compare it to the prices of iphone cases)
It fits perfectly, has all the necesary cut outs - with the exception of the memory/sim card section - but you'd hardly be taking these out every 5mins anyway.
The feel is comfortable and nice and grippy. I'd recommend to anyone with an N8.