I recommend staying in Studio Detox.
I've been in the Studio for a month with my husband and our stay was good.
. Location: The studio has the perfect location to get around the city, you can walk at night from Muelle Uno or the Centro Historico. Also the neighborhood is full of bars and restaurant.
You can walk to the beach too.
. The studio: is exactly as the pictures very comfortable for being an studio. It is a plus that you can put the bed in. In that space you can do some morning stretches! Bed is super confortable!
. Francisco was very welcoming and he offer us a microwave to use during our stay.
. Cons: There are some noises from outside that can bother you. Garbage collection is every night at 1 am. And when the upstairs neighbor flush the toilet you can hear the water running.
The bathroom is tight and hot water tank is small.