Super convenient location, really central and ideal for New Years if you are wanting to stay near Puerta del Sol. Supermarket 5 min walk away. Close to museums and all that is listed in the description. Would not recommend for 4 people as would be a little cramped for more than a couple of days. Night club right outside but not too loud at all. You feel very safe staying there (we were two females staying) as apartment is within an apartment building. Quite small but has everything you need, especially with all you need within walking distance so not spending much time inside.