When we first went to Calis some 20 years back, we thought it was lovely staying in such basic rooms as were available then. We stayed at Seril 2, then moved to the front staying at the Bahar, Ceren, Seketur, Area, Gunes. Not sure about the Bahar, but the others surely need updating and modernising, we are now obviously 20 years older and want nicer modern rooms so for us the Delta is the best we have found, and having found it a few years back, we have returned twice a year ever since. We did stay at the Nevada Spa which we liked, but unfortunately they had a system in place where you could not take drinks into the hotel (including water !) also we prefer to be on the front so although it is a nice hotel we don't like where it is. There are some lovely hotels along the front, cannot understand why the owners don't update them and charge more, perhaps they just don't have the money, but a lot of good hotels with pools are desperately in need of modernising and people will gradually stop going for the 'quaint and basic' experience and opt for the more modern ones.