A very experienced traveler and I can say about the Mercure Rostov on Don Center - there are practically no complaints. Everything matches the description on the hotel page - location, quality of services, cleanliness, comfort, staff, breakfasts, etc. They don't hide anything, no surprises. Yes, not cheap, but the quality matches the price. Noisy - on the avenue, we lived with windows on the adjacent street - you can still hear the noise. It's chilly - there is no coil in the bathroom, there are no batteries in the room - heating is centralized through air conditioning, it was chilly.