The Hostellerie du Château was taken over by the current owners about a year ago and they have evidently (from reading other less enthusiastic reviews) completely transformed it.
The décor is pretty cool - M & Mme told me that they had designed it all themselves, and our room was delightful and very comfortable. The breakfasts are fantastic (Monsieur makes a great omelette), the croissants are fresh each morning, and if you get down early enough to bag a table by the window you can watch the town around you waking up and getting ready for the new day. The Hostellerie du Chateau does not have a restaurant, however that doesn't matter as there are several restaurants in the town - a very good one one right next door.
Eguisheim is a lovely place and quite rightly has recently won the accolade of the most beautiful village in France, the buildings are covered with flowers and several have storks nesting on them, and (last but by no means least) it is surrounded by vineyards so there is no shortage of good wines to try with your dinner. It is also handy for visiting Colmar, Kaysersberg etc. etc.
If this hotel has a drawback it is that, being housed in a very old building, there is no lift, however our bags were whisked away by our host and hostess and carried upstairs for us - and there are rooms on the ground floor, just a short flight of steps up from the front door. Our room was on the top floor, which was probably a good thing as it gave us the opportunity to work off some of the calories we consumed whilst we were staying there.
So - a great little hotel in a fabulous location (did I mention the storks?), and a host and hostess who couldn't have been more helpful and welcoming.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.