We stayed at the Saint-Germain-des-Prés Citadines several times. Superb location on the river. (no views) Excellent service, very clean and modern. Fast elevators. Coffee/Expresso machine (huge) in the lobby. The usual frig, hot pot, sink, microwave, etc. 2 blocks from St Michel corner, Metro #4 and RER. Very active at night on the St Michel side and the Latin Quarter side.

The larger 1 bdr would be fine for 3. The sleeper in the large living room/kitchen is pretty compfortable.