Thank you all for your lovely comments.
Holly, I love the ribbing too although it did take a while - it was k2 p2 ribbing though so wasn't too bad - unlike the seed stitch I'm doing at the moment which is k1 p1 with very slippery cotton! For the first time ever my fingers are getting cramp whilst knitting! I used size 8 US needles (5mm) as recommended by the pattern. Whilst knitting the rib was making the pieces look absolutely tiny but luckily after some gentle blocking the finished article is a great fit.
However as with the other pattern that I made from this book I needed an extra ball of wool! :shock: I don't really understand why as my tension was spot on for both the patterns I knitted. Still - now I buy one more ball than the pattern says because I live in fear of running out and not being able to buy more wool to finish!
Now - I just need to get my seed stitch "pebbles" jacket finished and then I can start another Noro sweater - this time with Big Kureyon - can't wait. I think I'm a Noro addict!