It's important not to have too high of expectations so you don't get disappointed. And when you start living some place new, it's good to be in the shared spaces often so you can meet friends and let others get to know you.
Staying in Social Apartment has been a great experience for me as a person coming to Japan with no Japanese skills at all. Every Social Apartment I've visited has been different, mine turned out to be almost only Japanese residents which I thought seemed a little scary at first since I was afraid we wouldn't be able to communicate but it turned out to be absolutely great in the end as I made many Japanese friends which helped improve my Japanese learning and learning about everyday Japanese life. If I come back to Japan and my lifestyle has not changed too much I will most likely live through Social Apartment again!