It was a public holiday in Germany yesterday and so I had time to play with the new yarn. There was a lot of frogging involved but I think I got the hang of it now. The suggested hook size is 12 mm but I found that far to big and so I changed to a 7mm hook. Works far better for me and and the result is a lot less hole-y.
My current project is a small handbag in red-brown. Unfortunatly the crocheting is quite hard on my hands. The pointy part of the large hook hurts my middle finger... Ouch. Perhaps a little bit of sandpaper will help?!