This is a lovely modern hotel staffed by young clerks who are eager to help your stay go smoothly.
The tricky part for us is that the street is closed to motor traffic except for buses. This really confused us, as we drove round and round trying to find a place to park so that we could check in. No luck! We finally had to drive down the forbidden street and park up on the sidewalk in front of the hotel in order to check in. This turned out to be exactly what everyone does, and then the valet takes your car away somewhere to park it.
So, you will have to get everything out of your car that you think you will need during your stay, as it is tricky to get to your car again.
Once we managed that, everything else about the stay was just wonderful. The room, the breakfast, the shower, the comfortable bed, the cleanliness... all good! Great location for exploring Rennes.