I've lived in Sakura house for a couple of months, if not for my irrating roommate i would not have left. Yes I opted for a shared room. It was a nice experience. There were only 5 of us , all girls and our major language was Japanese so my Japanese was actually improving rather than degrading.
It will definitely depends which sakura house you choose. But as Nyororin suggested, LeoPalace is a good choice too.
and although this is a shameless plugging i would suggest also that you check out villasaranda.
Villa Saranda