I just wanted to follow up to this thread with a brief report.
After quite a bit of back and forth communication thru email, and WhatsApp (online texting), I ended up transferring our 3 night payment of 1055 Swiss francs to our hosts, Bruno and Rugila. We kept in contact via WhatsApp. Bruno gave me some good tips on driving through Switzerland, how to get to the condo, restaurant suggestions, etc. He met us at the cable car station in Murren and walked us to the unit. After explaining everything about the condo in detail he left and returned to Bern.
I have to say, the condo we rented was BY FAR the best lodging experience we had the entire trip! For starters it had a large balcony with a table and chairs with a MILLION DOLLAR VIEW that was absolutely breathtaking. 3 bedrooms, kitchen, bath, and living room with dining table and sectional. The entire unit was spotless and neat as a pin. TV with local channels and Netflix was a nice bonus. Overall we couldn't have been happier with the stay. And for $350/a night for 6 people it was among the best value of the trip. It was risky of course, but I am so happy we did it.
If anyone wants the contact info and details about the place, please feel free to contact me. I have photos and Bruno and Rugila's contact info as well.