Definitely worth the hiking effort to come and stay here. It can be done in a long day-trip back and forth from Murren or Gimmelwald, but you'd miss out on the full experience of this lovely berghaus. Much has been written about this online and I read it all before we came here. It is most definitely true.
We came by way of Tanzbodeli (great hike by itself--see TA reviews) and then back down to Stechelberg via the valley--there are actually several trails up/down. But all of them include a 2000 foot climb to get to Obersteinberg.
We got here in time for Happy Hour in the sun on the 2nd to last weekend they were open for the 2013 season. We sat on the cliff just drinking in the enormous views as well as our bier. It was very popular with over 50 people staying there that night. They do now have some electricity--but only for the kitchen area. You still dine by candlelight for dinner and ambient light for breakfast. But no electricity in the rooms--there is a small dim light in the bathrooms. Bring your flashlight or head light for use at night.
You get a huge down comforter which really does keep you very warm at night. We highly recommend upgrading to a private room---they all have views directly out to the mountains, which seem so very close here. And it does get chilly at night so bring your warm clothes.
Rooms were very clean with wonderful wood everywhere--see pics. You have a shared bath room (toilet only, no shower) on each floor. You leave your dirty boots at the door when you go in, so slippers are suggested--but they do have some you can use also.
Food was very fresh with many ingredients right from the dairy farm--cheese, milk, butter, yogurt, veggies, herbs, etc. For dinner we were presented a soup, huge salad and stroganoff with egg noodles. You could have as much as you wanted---they kept asking of we wanted more. Wine is available for purchase by the bottle of half-bottle. Breakfast continued with traditional Swiss breakfast of Muesli, milk, yogurt, cheeses and sliced meats and breads. Hot chocolate (our favorite thing across Switzerland) was also available if you asked, as well as coffee/tea. You'll probably share a table with another couple or two, but they do their best to spread everyone out....just depends how many are there the same night you are.
We were the only English-speaking couple this night. The main host had enough English to get by---the main English-speaking daughter was away this night to the Cheese competition in Stechelberg.
In summary, you really need to see this place--way out in the middle of the mountains. Stay overnight if you can for the full experience. Enjoy the hike there and back as well---it's all part of the fun.
Due the publicity, Obersteinberg is very popular so be sure you have a reservation (phone only) and confirm it. The other option close by is Berghaus Tschingelhorn. We might check that one out next time.