We stayed at Ozon Panzio in May 2013 to get some R&R in the heart of Lillafüred and we were very satisfied with the accommodations.
The room itself and the bathroom were clean and fairly nice, the bed was comfortable and the window faced a small stream which - along with the lush green surroundings - made the overall atmosphere really tranquil, perfect for a bit of piece and quiet. TV and fridge were provided.
We were housed in the building where the jacuzzi is, which has a nice rustic look to it.
Should you want to use the jacuzzi itself, you have to book it in advance.
The spa section (with the jacuzzi and infra sauna) had a good feel to it and a nice view from the jacuzzi, although the water temperature was a bit lacking.
The breakfast was pretty basic but tasty. The staff were helpful and friendly.
Ozon Panzio is right across from the Szent Istvan cave to which they offered us complimentary entrance.
The is a bus stop right across the street and you can get as far as the city center of Miskolc.
Overall a nice stay, would recommend it.