I've been to Murren a couple of times. Beautiful walking that path or taking that train.
Isenfluh bills itself for being off the beaten path, with panorama of the 3 big peaks.
Is it a better view from Isenfluh or Sulwald than from Murren?
Certainly Isenfluh sounds more difficult to reach. I'm assuming the Postbus isn't as convenient as going up the cable car to Grutschalp.
Is there enough parking up in Isenfluh?