What we liked: The apartment is nice, in front to the Emaus cloister, just around the botanic garden and really close to the metro and tram stations, and a 20 minutes walk away from the main attractions, finally Roman is really kind.
What we didn't liked: The apartment needs a thorough vacuuming, one of my earring fell under the bed and I had to deal with a lot of dust and hairs of previous guests, of course this was not pleasant. The really sui generis bathroom, but well, for just a few days it is not a real drawback.
An advice: We were a little delayed but were unable to notify Roman because we only had the phone of his library, so if you rent this apartment maybe you should ask him for his mobile phone number.