We stayed in LX Boutique Hotel (unfortunately only) for one night on our way back from the Azores. We would have loved to stay longer, however we had to catch a plane home the next morning.
The location is amazing in Chiado, just next to the Barrio Alto. The receptionists indeed are super friendly and we as well were upgraded to the 5th floor.
The complimentary welcome glass of wine and sushi really topped it off.
We will be back!