If you are in the right situation, this place is a great home base to explore Lisbon. Great location, but in a neighborhood where real people live. Great restaurants extremely close. Easy to get to the metro and trains.
Some of the best things about this apartment: good wifi, extremely clean, little rooftop patio is great, nice finishes.
Some things you should consider or you might not be very happy...
Must be in good shape to make the stairs up to this apartment, the angled ceilings would be challenging at times if you are over 5'10", the shower is going to be tough if you are a bigger person (challenging any way), not a place for kids and not a romantic getaway rental. If you are thinking "bachelor pad", you are thinking correctly!