We trekked with Vista Trek tours and Gore was our guide during Christmas 2015. We had a special “family only” tour with a different trek route than most standard published tours. It was excellent and all four members of our family 2 adults and 2 teenagers made it all the way to Gokyo lake! Our tour was perfect from start to finish including Kathmandu! I would recommend Vista tours to all! Our communication to Vista Trek was via Skype and email and everything was perfect!