We stayed at Guesthouse Au for 3 nights on a recent trip through Switzerland & Liechtenstein and thoroughly enjoyed our stay. We stayed in a double room and slept really well - the beds were comfortable and the room quiet and pleasantly warm. Our room was huge with a big private terrace, ensuite bathroom and small dining area. Breakfast every morning was included in the room rate and, whilst not extravagant, included a good election of croissants, bread, jams, yoghurt, cheese, ham, salami, hard boiled eggs, etc. The staff were helpful and friendly and spoke good English. The guesthouse is a short walk away from the centre of Vaduz and there is a bus stop is just a few metres away. Perhaps the only thing to be aware of is that the guesthouse is above a restaurant so sometimes the smells from the below come into the rooms, though they smell so good this was never a problem for us! Also, there is no "reception" area per se (the check-in process happens at the bar) - not that that was an issue at all, just something to be aware of. Overall we would highly recommend Guesthouse Au as a great place to base yourself when staying in the tiny country of Liechtenstein - it's clean, comfortable & great value.