I took a Blue Roads tour to southern Spain and Portugal in April 2018. The guide (Australian) was very good- knowledge, fun and engaging. The driver was very good too - he was a Spaniard and didn't speak much English. I liked that it was a small group , only 13 in this tour and small comfortable Mercedes bus. The hotels were very nice, 4 star is my guess. Most of the stops were two or three nights in one place, there were a couple of one night stops. For the visit to the Alhambra and La Mezqita they had local guides, both excellent. I think they changed one of the guides for one of these prior to the start of the trip, based on feedback. Luggage was taken to our rooms and back to the bus on departure days- they would tell by what time to have the suitcase outside of our rooms.
There were couples from Britain , US, several women from Australia and New Zeland and me as the only Canadian. Several singles. Age range was 50 to 80s. One person was a travel agent- I take it that she was on the tour as part of her work to see what the tour was like. She would try out the hotel services like laundry,
Maybe they over emphasize the small "blue" roads aspect. For most of the travelling I think were on major roads. For a few we were on smaller secondary roads.
Having to pay the pay the deposit and full payment was complicated, Likely that has changed, I think had to get a money order or certified cheque and mail it to an office in Montreal. It wasn't straight forward.