We booked the Tour du Mont Blanc Hotel Trek through tourradar last fall. The booking was smooth and when there were glitches their staff was very prompt and helpful to a point. In the spring we heard through a friend that our tour was cancelled and no one from Tourradar or Exodus had contacted us. You can imagine our dismay. We had to rebooked dates of the trip, airlines, transports, hotels etc. The main problem is that no one accepted responsibility. Yes they were very apologetic but it took us many emails to have SOME of the additional fees taken care of. Again, everyone was very apologetic but that only goes so far. Even though I had emails saying that the trip was confirmed they said it was not and that we should have waited to book flights etc. When you are wrong-just say so. I may use them in the future but I now know that I need to verify the confirmation of the trip with the actual trip operator.