Thank you for your lovely comments.
The pattern is taken from a booklet of patterns - Patons Autumn Shades, no. PBNoooo-03384 (bought 2006)
It contains 12 designs for jackets, a throw, a bag, scarf and of course the hat. All the designs are lovely, and there is something for all levels
As to the changes I made - I had to adapt as I went along; but this is as much my fault as the pattern. I must say though that there is a print error in the pattern, stating to use size 7 for the main hat; it should have been a 12. Once I'd figured that one out, I realised I only had a size 10 or 20 hook. So.... I went with the size ten and added some more stitches and rows in. I'm sure if you followed the pattern with a size 12 hook, it would come out fine.
The stitch is very easy to do. As long as you are confident with double and treble crochet you will have no problem with this. The right side of the hat is actually the wrong side as you are making it. You can easily do the body of the hat in an evening, and then the finishing touches another evening; if anything this took longer to do!
Hmmmm, me thinks I will start another one today. (just thought - I know there is a difference between UK and US crochet terms; I get thoroughly confused as I have a mixture of patterns from both. So, this could be double and treble stitches, or single and double depending where you are from!).
The yarn IS beautiful. It is sold in Turkey as a Himalaya yarn, but may well be sold elsewhere under a different brand name. 100% and available in several beautiful colour mixes; I fell in love with this one as soon as I saw it.