SL!M was very responsive to all of our inquiries and requests. Checkin was very easy and he let us show up a little early. The flat was as described and clean. The location was our favorite part. though. It was easy access to everything we wanted to see. He gave us some tips for where to eat, which was very nice.
My one complaint is that the upstairs neighbors were very loud. There was cheering, vacuuming, and what sounded like furniture moving after midnight each night we were there.
Overall, though, we enjoyed our stay!