Хороший отель, но есть весомый минус Good hotel, but there is a significant minus

We chose this hotel because we had already stayed there several years ago. Practically nothing has changed: the staff is very friendly, all wishes were quickly fulfilled, and the room is clean (if you do not include the “auditor”), the restaurant menu is without any frills, but delicious (prices are almost the same as in the city). There were quite a lot of guests during our visit - it was felt in the spa area, so we walked more in the city.
I would like to mention the administrator of the spa area, Vera, a very positive person and an excellent professional!
We took massage courses, probably got to all the shifts of massage therapists - all, without exception, are very good specialists.
The waitresses and maids are helpful and attentive.
And now for the cons:
Dear leaders of "Higina Spa"! Really for so many years it was not possible to equip the rooms with air conditioning? Especially since the summer is getting hotter every year.
This minus covers a large number of pluses.