I had a lovely stay at Laura's.
Everything is like in the pictures.
The flat, especially the bathroom is a little outdated, but it's got everything you need to be comfortable.
Yes the elevator is a little noisy but if you are a normal person that sleeps at night, it won't bother you. I was out all night most nights and tried to sleep during the day when the elevator was always busy but if you're not a very light sleeper I think it's still ok.
The balcony views are incredible. It's worth it for that view. Also Villa Crespo is my favourite part of Buenos Aires. So really amazing location too.
The owner Laura is very kind and helpful with everything. I recommend the place.