Nestor's place is very central, easy to reach, close to metro station, safe area. You cannot go wrong on location.
I didn't personally see Nestor much and we didn't talk much so no comment there.
The room itself is small but absolutely adequate if all you care about is a bed and shower.
The down part is cleaniness. If you are not fussy like me, you are fine. But if you are fussy then I suggest you pass.