The Happy Apt is very well situated as a base. It’s clean, well lit, comfortable. You can see Castel San Jorge from the window, & can see whether the line for Tram 28 is long or not. Bed is a comfy double, and the kitchen is well stocked. There is a heat panel in each room if it is cool which was helpful in March 2018. The stairs could be a challenge for someone with bad hips/knees.