We stayed here for the 2018 Austrian GP. Although a long trip to the Red Bull Ring - 1-1.5hrs, the hotel is right next to the railway station, is very comfortable, clean and efficient. We had breakfast each day which was provided from 6am so we could get to the track early when we wanted to.
Staff were very friendly and helpful and most spoke English (which was great for us).
It's about a 15 minute walk down to the centre of Graz but it's an easy walk.
There is good food nearby.