The Acla-Filli is a nice basic motel, cheap, clean, sort of like a nice chain motel (think #).
My room was on the small side, but comfy, cheap? (90 sFr) during the off season, had a loft space, and a great shower. The TV was satellite, which is like cable TV (but more so), a zillion channels and nothing good to watch. However, if you are from Europe, you are likely to get one of your home stations.
The hotel restaurant was pretty good (not spectacular), good prices for a hotel restaurant, and seems to be one of the more popular places to eat in town. The free breakfast was average, but all in all, the serving staff was excellent. Contrary to most Swiss hotels I've encountered, there were some language issues with the front desk, but they were always nice and we got our points across.
The hotel is a short walk from the Zernez station (and most everything else in Zernez). There is a supermarket at the hotel, but except for simple snacks, a better bet would be the Co-op down the street (more choices). I think parking was available at the hotel.
All in all, I think this hotel is prob. average for the area, but it was a good value overall.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.