Great location to see Valletta and the nightlife. definitely will hear the music and party goers. it's a nice place and has everything you need. Umberto is very responsive and gives great recommendations.
only real issue is the use of the front door, really problematic locking system and the elevator is super tight to use. a bit cumbersome with the keys and cards.
Also - don't try to Uber to the place, go to the bus station and just walk up the main road. make sure you are clear on where to door is as you'll be dodging lots of people.
would stay again