Perfect location; cosy apartment; very warm and well insulated.
Not completely equipped for cooking there often (for example, there was no drying rack for plates or kitchen towel), but this was not an issue for us since we ate out.
One of the mattresses is in bad shape and disturbed my sleep - but that won't change my rating since this is easily fixable by Bossum by changing that mattress :) Also the mattress topper was too soft.
All in all, very good experience. We were pleasantly surprised by the apartment, and Bossum was friendly. May go back in the future if I come back to Prague!