I stayed at Hotel Siddhartha, Dehradun for one day in January this year. Well located at the heart of Dehradun .It's a budget hotel. Service was friendly. But some of the basic amenities are not up to the mark. The bedding was poor and both I and my wife had much back pain after a night's stay. Plus hot water was not available in our room which left us very cold with the plummeting temperatures outside. There is no Wi-Fi either. We had to move to a different hotel the next day. In short it's a mediocre hotel for budget conscious travellers. Suitable for short stay in summer time.