I know this is not of great importance but could this be the place Jen & Lorenzo are having their dinner before going to the Fantasy site. My friend from Goteborg sent me this.
Yes, it's a possibility, they meet up at Liseberg, drive about 15 min to get to Hotel 11, where I was almost sure they had the dinner.
http://www.hotel11.se/info.asp/id/2010 is also north of the centre of Göteborg (Liseberg is located in the centre of Gbg) and from Hotel 11 they are a bit closer to Thorskogs Slott. From there it's only a 25 min drive to the Hot Tub and the Fantasy suite.