My friend and I stayed for two nights. The place was small but clean and attractive. The bed was comfortable. The room was quite hot in the daytime but there was a fan provided, which helped. No problems with the shower or plumbing. Dianka was friendly and quick to communicate. The location is fairly close to Rossio station.
Overall I would recommend staying here, and would totally recommend anyone visiting Lisbon to take a day trip to Sintra - beautiful!