Well, it's cheap.
Ok, it's in an interesting area full of rustic and lively night life, tapas bars and so on. That's brilliant.
The problem is that the place is sort of a DIY / bricolage project, presumably designed to maximise the use of the volume to rent to tourists. Think plywood, L-brackets, a lick of paint. I'm not convinced that the electrical and plumbing work is up to standard (electrical plugs directly beside the shower, a floor lamp in the bathroom was the only light, the hair drying spit out sparks when we tried it).
If you're two, it's problematic as to lock the "apartment" door (highly advisable in that neighbourhood) from inside or outside, you need a key and there is only one set of keys.
In brief, it's cheap, well-located and reasonably clean, but I would find it difficult to recommend.