The entire experience was perfect! The location was ideal (we could see the Eiffel Tower just down the street), we were less than a 2 minute walk from a main metro line, the bed was amazingly comfortable and a true queen with great pillows, there was more than enough space for 2 adults, and dealing with Sev was easy as well. Also, within short walking distance were local restaurants, franchise coffee and food establishments, wine and chocolate stores, and a supermarket.
The apartment is on the 4th floor with no elevator, but it was not an issue at all.
We were just in Paris for the 3 nights, however when our flight was delayed, our first thought was to stay for an additional night, even when the airline was offering to pay for a hotel for us.
Sev, thank you for the wonderful hospitality and great experience; we will certainly look into staying at your apartment next time we are in Paris.