The overall hotel is very well-maintained and spotless, but the furnishings also look "well-loved." Style-wise, it feels more Spartan than a luxury hotel but that's a personal preference.
Service at Traube Tonbach was very good. Everyone was unfailingly courteous and it was a bonus when the staff at the breakfast remembered our names. One staff member (Christian) learned that we had dined at the 2 Michelin Schlossberg the previous night and went out of his way to recommend some dinner restaurants in nearby Freudenstadt that were delicious but more low-key. Thanks for that!
Unfortunately, Schwarzwaldstube was fully booked the weekend we were there so we didn't get a chance to try.
Another matter that was a bit of a letdown - because I booked through Hotels.com, I didn't get any communications about how the hotel rate is inclusive of activities. Thus, we had a full schedule planned for the time we were in the Black Forest and we missed out on the hotel's guided hikes, etc. There is a daily refreshment hour with complimentary light bites (you have to pay extra for drinks). I think for someone who did participate in these activities and enjoyed the free refreshment hour, this would be a good value for a luxury hotel.