I've seen that coop, the farm store where we got our chicks sells it. No way that will work for 7(?) chickens. And you aren't going to want to be crawling around inside to clean and retrieve a sick chicken or stray egg. It is advertised to house 4 chickens and in reality that means 2.
We bought the next size up coop (same company as yours) the same day we bought our chicks, It was advertised to house 6 chickens (we have 6) before the chicks were even out of the brooder we realized it wasn't going to work. WAY too small and not predator proof. Cheap wood and hardware. Too many changes would need to be done so we sold it on Craigs List unused. We repurposed an old shed and built a run onto it.
If you had only 2 or 3 Bantams, no predators and a mild climate, it may work.