While traveling in Europe, I had a change in plans and headed to Barcelona for a few days, making plans at the last minute. Many hotels were already booked but the Medium Prisma showed rates of 49E/night for a single, and booking on their web site got free wifi thrown into the deal. The hotel is clean and even makes a half-hearted attempt at style in the lobby, but two factors trump everything: the noise and the location.
The walls and door to my tiny little room were so thin that every small noise seemed to be right in the room. The hotel has (admittedly, spotlessly clean) tile or slate floors, but this served to amplify sound even further. Breakfast dishes clinking one floor down sounded like they were above my head, maids moving furniture in the room next door might as well have been running jackhammers directly into my brain. At one point in the evening I was awakened by what sounded like someone crumpling paper in the hallway. It's that bad.
Location is terrible even for the intrepid. Subway stops are a good 15 minute walk away, and those on a line that goes parallel to the center, requiring an awkward changeover. I'm an avid public transit user and went online to figure out the bus system, but even that was a nightmare, with only one bus meandering towards the center of town from the hotel's street. There are a few restaurants nearby as well as what appear to be, er, gentlemen's clubs, but after about 10pm nothing is open within what seems to be a mile-wide radius. Taxis are not cheap in Barcelona and you'll spend about 5E to get to the center -- plus if you can figure out the night bus ("nitbus") routes, those aren't included, inexplicably, on your all-inclusive transit card. Go figure.
It was the "high season" for tourists in Barcelona, sure, and a non-skeezy, clean bed for under 50 euros a night is a damn good bargain, I'll admit. But if you can't sleep through the night because the walls are made of some sort of sound-amplifying cardboard, what's the point? And if you're going to spend 10E/day on cabs to get anywhere, you better figure that into your budget.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC