Warm welcome, kind and helpful staff, clean and modern rooms, ideal location. Breakfast buffet is nice. And the apartments are fully equipped (microwave and induction ovens, sink, cutlery,...) and affordable prepared dishes of first quality are available at Reception. I bought a tasty duck parmentier at 10 euros.
So it's a no brainer. I have been many times to Le Mans and tried different places but Odalys beats them all.
My only (small) reserve would be in case the weather gets too warm. The rooms I rented had no aircons but a fan was supplied.
Anyway, real value for money. I'll go again.