The Wallis team was very friendly and always answered almost immediately.
However, our stay was rather unsatisfying. The room itself was clean but only had basic features (2 beds 200x90cm), one wardrobe, a rack with towels and one nightstand with a light. There's a shared balcony with great view. The balcony door was broken and could not be locked. We told the team immediately after check in, but no one had a look at it until we checked out 3 nights later.
The men's bathroom only had one toilet which could not be locked and two showers. It was not clean, especially the sinks and there often were paper towels laying around everywhere. This is why we would not recommend a stay here and rather spend some more money on a better hostel/hotel.