Diogos place is exactly as advertised. There is also something very special about staying right on the Bica elevador. Your are essentially staying in a post card.
Diogo is quick to respond to messages and stays in touch throughout the process. My partner got food poisoning during our stay and Diogo checked in multiple times to offer any assistance. Bed is comfortable. Glazed windows lock out the lively neighbourhood outside (especially weekends). If you are particularly adverse to noise I would recommend somewhere else. But if you want a fun location where you can get to know parts of Lisbon which aren’t a tourist trap, Bica is fantastic.
Would recommend.