Sarah's appartment had everything I needed, is clean and is located in the south eastern district of Paris. For me location was perfect, I was there for a job, but also for a touristic visit it is great. The bus stop 50m away would connect you to Gare de Lyon and Gare de Montparnasse directly (and there one gets bus to the airport).
Also getting to the center is easy with other bus and metro (200m away). Le jardin des plantes is less than 5 min of walk and is absolutely fantastic place for jogging (in Paris there are not so many nice tracks). The district is perfect if you wish to see how parisians live (without touristic crowds).
Inside of the appartment one has absolutely everything as for ustensiles etc. Also Sarah left fruits etc for my breakfast next day. The appartment is not very big, but still comfortable, it is typical parisian "under-the-roof" studio. The bed was comfortable (to my taste).
Sarah was a warm host and very eager to help with any of my questions.