The Diana Hotel has been here before and is used by the rich mainly even though only a 3 star rating. Here's the description:
Went there once before knowing much about Yambol, too posh for me and the porter (wearing white gloves) wouldn't even allow me to press the lift buttons as that was his job!This 3-star hotel is located in the centre of Yambol, 300 metres from the Yambol’s town museum and main administrative buildings. Hotel Diana offers free parking and a 24-hour reception. The air-conditioned rooms at Hotel Diana Yambol feature a classic design. All rooms include a TV, seating area and private bathroom. Wi-Fi is free in public areas and some rooms. A full buffet is provided each morning in the breakfast room with its cosy carpet and paintings. Bulgarian and international dishes are also served. Guests are welcome to relax in the sauna and fitness room. Massages are also available. On-site parking is free at Hotel Diana. Yambol Bus Station is 400 metres away, offering direct connections to Sofia and Burgas.