Parca Martim Moniz is a fantastic location from which to explore central Lisbon. We didn't expect such great views over the plaza and up to castle beyond. The endless parade of life in the plaza was better entertainment than TV.
The apartment and it's underground garage are modern and very secure. It's not a luxury pad, but it's comfortable and conveniently laid out, and is spacious for an inner-city apartment. You can certainly plan to cook meals in the kitchen, but get a lesson on how the oven works when moving in.
There is, of course, some street noise given the location, but with the double-glazed door-windows closed and the shutters lowered this was not a problem at night for sleeping.
The elevator was fast, and we never had to wait for it. Public areas of the building were very clean and well-maintained.
If coming by car, make sure you know where the building garage entrance is before arriving. It's not the one you might expect!