Elena is an excellent communicator and very accommodating, everything was set up perfectly for our arrival! The apartment is full of character and history and had everything we needed in plentiful supply. The location is perfect for walks to both left and right banks. I highly recommend the Jardin des plantes for families. We had not been there before and really enjoyed it. Ile St Louis does not feel too touristy, but you may generally be more confident of better value for money in restaurants if you venture a bit further afield.