Perfect location!!! You're well connected by metro and also you have perfect walking distance to most of the sights.
The hostel staff was very welcoming, we felt right at home. Also since we came entirely unprepared, the free lonely planet guides were very helpful. The room was stylish, clean, with comfy beds and a great view! Breakfast offered a variety of products, mainly sweet things and good coffee.
We were very happy with our choice and would recommend it to everyone else who's coming to Lisbon.