Location is great, the Crater is one block away, and at night you can easily see the Milky Way there. The surrounding area is interesting and there is a shopping center and visitor center within 20 minute walk or 2 minute drive.
The staff is mostly nice and helpful, though the person who checked us out cracked a joke about us owing 5500 euros, which wasn't funny at all.
The room was a bit smaller than we expected, but well suited for our needs. The pool isn't big enough for all the guests too.
The breakfast was excellent with rich selection.
The biggest problem is that the hotel doesn't have free parking, even though it's promised in the listing. Granted, there is a public parking across the street and the front desk sells parking vouchers for a very reasonable price. Still, it's not okay to promise free parking, if it's not really free.
The check-in took about half an hour standing in line to the front desk. They said it wasn't typical, but who knows. The listing also promised full kitchenette in the room with all the utensils, but there were only cups there. In fairness, we asked for more at the front desk and within an hour they brought us a full set of utensils and plates too. We also were one towel short.
The hotel seems nice and renovated, though its planning is awkward, and finding the room can be a challenge.
The room was mostly clean except for the drawers - there was a lot of dust inside and we had to clean it in order to put our things inside the cabinet.