ZUZA is probably the best B&B you can find. I mean in general, not just in Lissboa. Luis is such a great host, he made us felt welcome and comfortable. He is funny and helpful in every regards you can think of. He even provides an app for navigation to all the historic places in Lissboa, restaurants, parking lots....works great, also offline, we used it for everything.
The room was clean and cozy, breakfast is great and the location is a peefect starting point to explore the city. A great experience overall.