I booked this hotel for my last vacation and I have to say that I was a little bit scared about the real conditions of the hotel. The price, infact, is absolutely a bargain, considerng that Tenerife hasn't a real low season (the wheater is always warm, like a endlessly spring).
But the rooms of this hotel are exactly as you can see in the commercial photos you can find in the net. Maybe furnishings wouldn't be the most beautiful you have ever seen, but they are nice and in excelent conditions. Also the rooms are very spacious and have a balcony. For a hostel price (29 euros/night) you can have a studio for two guests, with kitckenette, a living space and a double bed (and the mentioned balcony too, many rooms have also a beautiful seaview).
The hotel has a pool that guests can use for free and a free wifi is available in the lobby.
There is also a restaurant that makes international cuisine, but I never tried it.
Just a complain: beds could be a little big younger.
The site, callo Salvaje, is a little urbanization at the north of the most famous beaches. For sure you can find many hotels closer to the attractions, but in Callao Salvaje you can fall asleep listening to only the sound of the ocean.
Ps: maybe you can find a cockroack in your room, but it isn't hotel fault. cockroacks are a problem of the entire island.
