We had a very nice stay at Michael's apartment. The apartment is sparsely furnished, but has everything you'd need and expect (bed, closet, table, etc.) and most importantly, it's clean!
As for the location, it's not smack dab in the center, but is literally right across the metro, which will take you to the city center in about 10 minutes.
Michael was very helpful and professional. He helped us out with a special request without hesitation and even anticipated most of our questions. Our arrival and departure went without a hitch.