Helen & Martin's apartment is definitely the best option for a great staying at Madrid.
The apartment is located a few meters from Plaza Mayor & Plaza del Sol. You can walk almost every place of interest from there. Very Close & well communicated.
The apartment has everything you need, it's clean, cozy and very comfortable, with perfect size for a family of 4.
We will definitely book back on our next vacation in Madrid.
Thks again and congrats for your excellent hosting!!
Sincerely RM!!