I had a really good time at Lookout, one of my best experiences in Hostels. I knew a lot of nice people, between the travelers and the staff. In the hostel everything was really clean, well organized, and the breakfast's were excellent.
It's well located, near to pubs, restaurants and historical places.
If i go back to Lisbon i'll definitely go again to this hostel, they arrange trips to the beach, they give you directions if you need to go somewhere, the wifi works perfect, and they even have a computer for public use if you need it.
I have to give special thanks to Fabio, Joao, Bojan, Claudia, Fabiola, Filipa and Bruno (hope i didn't forget anyone), they're really helpful and friendly.
Hope to see you soon guys!