Hanna's apartment was a good base for us in Stockholm. The apartment is a good size, with the exception of the bathroom which is closet sized and a little awkward to use - it's a good thing it's the least used room! The kitchen and living areas are quite roomy and made our stay very comfortable.
There is a supermarket nearby, the tunnelbana (metro) is a 10 minute walk (and just a few stops from Central Station) and there are plenty of good restaurants and cafes nearby.