I stayed at Jarls house but he wasn't there for the week I was there, so we never met! However he was so generous whilst I was there, communicating with me and ensuring I had everything I needed.
Place is in a great location, close to Karlaplan trains which take you on a 5min journey to Central where you can start Stockholm exploring!
Room was as described, quiet, calm and perfect size for a traveller. Bed was reasonably comfy too.
Would stay again. Thanks Jarl!