We had a group of five in Lisbon for three nights and Samuel's place was perfect for us. It's in an ideal spot close to everything whether you're walking or taking train/bus/tram. It's also close to Rossio (trains to Sintra)l and elsewhere) for day trips outside Lisbon.
Loved the layout of the place, great for groups. Bathrooms were enormous and nice water pressure made getting ready for a few nights out easy. We stayed in late March and never needed to use air or heat.
Walking distance to almost everything the guide books recommend and close to a grocery store and some great bottle shops for a nice night in or wine and cheese before you go out for... more wine and cheese.
Couldn't recommend more highly!