Thank you all for your responses!
CJean - I am happy to hear that you were happy with the Odysseys tour. What I meant by odysseys being more “culture-sheltered” is precisely as MJH-travel says - Less direct interaction with the local people/culture i.e. home served meals etc.. which seems to be an OAT hallmark..
Pam - thank you for explaining that the RS trip out to IONA/Mull could feel a bit too rushed and it seems that it might be better approached with one of those smaller day trips that are offered by local companies as was experienced by jeanM.
***ChinaLake67* Interesting what you say about the food on RS tours. I was on an Odysseys tour where people were comparing/contrasting RS vs Odysseys. (At that time, I’d not taken an RS tour) The conclusion was that RS emphasis was 1 food 2 hotel while Odysseys was the opposite with hotel quality was 1 followed by food. I have since experienced both companies and I don’t think it’s that cut and dried. I have been on 3 Odysseys and 2 RS tours and I’d say that it depends on the country. The food on the Spain, France tours were meh. (Yes really. Such a disappointment ) Southern Italy was far too carb-heavy and protein light - but I also concede that is the Cuccina Povera style. Food was excellent on the Germany and Northern Italy tours. I do give the edge on Hotel quality to Odysseys BUT they were not always in or close to the city center (this is a major drawback as you can’t necessarily explore if you’re stuck out somewhere) Since they disclose the hotels, I will only now only consider Odysseys after evaluating their hotel locations. Obviously, for the Scotland trip, I’m not dinging it for some of the remote area hotels.
In general, I think I prefer the vibe of the RS tours as everything is so transparent, which is the polar opposite of Odysseys, where everything is centrally controlled - the tour directors have no discretion on anything (not local guides, not snacks, nothing) and they do not publicly display any reviews. I really like the daily plans that the RS guides put up. I’ve even been in hotels where OAT has put up their daily schedule. Odysseys will not allow their guides to put anything in writing out for public view. Thus any suggestions for possible extra-curricular activities or places to eat can only be communicated verbally. Sigh. My preference is to read things esp. in foreign language. Despite all this, I still consider them a good tour company but admit to looking at the RS itineraries and scrapbooks first. But am open to trying out new companies, which brings me back to - yes I will take a look at CIE - a new one for me!
Anyway, your responses have been very helpful!