Martin's place is very nice.. Just as described in the listing. Only 2 drawbacks.. First the hot water is inconsistent.. The nice lady who let me in showed how you have to run the hot water in the bathroom sink before turning on the shower.. But also when using the kitchen sink sometimes..
Second, all the windows look to the interior so you don't really have a view if that is important..
Otherwise it was a nice modern place... Check out is complicated if Martin or one of his associates is not there to let you out.. In Buenos Aires all of the buildings lock outside and inside, but you need to leave the keys inside the apartment itself.