Overall, a good experience at the Orion. I stayed twice in a ten-day period. The first time, I was met at the airport for a pre-arranged shuttle service and checked in without any difficulties. I bought a SIM card ($6!) at the front desk, and the receptionist installed it for me. I recommend this service, as I found my cell phone was very useful during my trip. The room was on the 3rd floor (no elevator). Breakfast was also good, with a variety of foods (porridge, egg, meat, toast, fruit slices, coffee).
My second stay was for a single night but didn't go as smoothly. The shuttle service did not appear at the airport (when I called the hotel, they said the "car had broken down"). I called a Yandex cab and was at the hotel in about 20 minutes. The room was on the first floor, near the reception desk, so it was noisier.
I'd recommend this hotel because it is good value for the money and everyone on staff was friendly. The rooms were neat and clean. The hotel is a bit off the beaten path if you prefer to walk, but it's pretty convenient to call a cab.