There were many pluses at the apartment: it was clean, well decorated, very good heating, great bed, quiet on an inside courtyard, good wifi. The minus was that for 2 people it was very small - we each had a suitcase and there was not enough room anywhere to put them on the floor and open them (as no furniture other than a table bed and small shelf, so nowhere to put them on furniture.) We could have unpacked them and put everything in the cupboard, but didn't want to do that for a 3 night stay. it would be ideal for one person, or for two without a lot of baggage.
Leo was excellent - communicated right away and had a friend meet us as planned.
Nice and central to Beaubourg, the Art et Metiers museum (interesting), the Marais and the metro.