Basic accommodation, perfect to stay one night and explore the Cave of Zeus. The Cave is only a 25-30 min walk (you walk through a typical Cretan village) if you like to walk, or less than 10 mins by car.
The room was clean and equipped with all the basic necessities (even a hair dryer) and a nice view over the Lassithi valley. We didnt ask for wifi so we're not sure if there was any. Dyonisios is also a Tavern so you can eat downstairs if you want (pretty busy at lunch time with tourists). Breakfast is included in the price of the room and it is served by a really nice lady (the wife of the host): we got nice fresh bread with jams, freshly squeezed orange juice and really nice coffee.
The only issue we had was that the towels and pillow cases, although very clean, smelled strongly of food - but i'm sure it was just an isolated incident.
Overall recommended for a short stay to visit the Cave of Zeus.