We have stayed at Aperon for 2 nights and it couldn’t have been any better. Extremely central location, close to the metro/train station, yet reallt quiet as the apartments have an inside yard. We have used the excellent luggage storage both before check-in (which we completed sooner, as the apartment was ready, thank you Aperon!) and after check-out! Secure common spaces, we felt really safe, every entrance was protected by the code received at check-in. The apartment looked exactly as in the photos and totally matched the description. Everything you might need for cooking and enough toiletries in the bathroom. Spotlessly clean, both the apartment, and the hallways and common spaces. The temperature set was comfortable however it can be regulated by yourself as well. The hosts were really responsive and kept in touch at all times with us.
The only downside might be the lack of an elevator, as it could be complicated for elderly people, however we were fine! Highly recommended!