Eichwalde is a quiet, residential town. I was planning a couple of long days at DESY-Zeuthen, one S-Bahn stop south of Eichwalde (or a nice 45 minute walk). I typically stay in Berlin proper, but wanted to give this a try. Anyway, I had a small, but very nice, single room. Checked in late via the intercom and key lock-box. I had a German speaker with me, but it seems likely it would have worked in any case. Breakfast was quiet, food and coffee were excellent.