Benny's place is very well serviced and located, the apartment is well connected with a few shops nearby, taxis are easy to catch, the gym is small but clean and equipped with cardio machines and a few weights, pool and sauna are nice to have.
Check-in was smooth, there is a 24h reception desk which feels safe and comfortable, and instructions were very clear.
Above all, Benny is a very reactive host, we have faced some Wifi issues which was crucial as we were in Istanbul for both Work and Leisure, he managed to have a technician in 24h to solve the issue.
There was no downside except maybe the noisy neighbor as the walls are really thin.
My only suggestions would be to add a working desk as the kitchen counter is not suitable for laptop work.