Located North of the city, this place provides what it says on the tin. A truly electronic experience, monitored via big cameras in the corridor.
A clean and comfortable bed, with easy access from the airport, not sure I'd stay again as its further north than the parts of Lisbon I like, however a clean room and somewhere to rest your head.
Also, just to note, on the boulevard there is a little open air bar - this place has a very relaxed feel and provides a lovely place to watch the world go by until the early hours of the morning.