Excellent tour.
I am an older experienced rider and would rate this ride as challenging.
There are some significant climbs,the gearing on the rental Silex gravel bikes takes care of most of it though.If you bring your own bike,make sure you have a very low gear available.
Plenty of 8-11 % climbs with a few 18% pinches ( I walked a couple)
Guides were top class as was the food and accommodation ( aside from one,which was so so,but no other choice.
The company was very good to deal with on the lead up to this ride,and were very accommodating
I would strongly advise a navigation app on your device or phone,as many of the roads are out of the way gravel with turns,all in all great tour and I would not hesitate to do another ride with them.
The guides will wait and mark the turns for you ,but always nice to know where you are going during the ride.