They provided excellent support from beginning to end on our trip. The hotels they use are great, and their route notes and gps files are great. Some advice if you're considering the Berner Oberland trip and you've read this far: stay flexible in your planning, and do some of your own research on activities that aren't hiking in the areas. The weather was pretty lousy when we arrived and stayed wet/overcast for the first 3 days or so, so we ended up completely rearranging/changing the routes we planned to hike. We packed hiking clothes for all weather though (as you should too!), and managed to stay comfortable and dry even being outdoors all day. And keep in mind until you travel to Zermatt, everything is (more or less) within an hour's reach by train. We ended up getting a beautiful sunny day on our 2nd day in Lauterbrunnen, so we traveled from there to Widerswil to get to Schynige Platte (actually a shorter train ride than if you left from Meiringen), and took two short train rides from Grindelwald back to Lauterbrunned after the hike. It was well worth the shuffle, and wasn't at all difficult thanks to the ease of use of Swiss trains and the close proximity of all of these mountain villages. My one complaint is that you'll want more time in each town proper, but that's not their fault, and if you have the means, you could always extend days with their help. It's an absolutely stunningly beautiful part of the world, and they made it a breeze to experience. Thanks!
Accommodation in Meiringen, Grindelwald, Lauterbrunnen and Zermatt was very good. Breakfasts were ample and staff were friendly and helpful at each location. The walking tracks were interesting and well signed. Trip notes and maps were comprehensive and easy to follow. We really enjoyed our trip.
The trip was exactly as mentioned in the description. The planning and execution of the hikes for all the days was exceptional. Our guide Sebastian was really experienced and helpful all along! We indeed had a great variety of local food in our lunches. The hikes were a bit challenging, yet fun nonetheless. Prior fitness before attempting this is required. I would highly recommend it!