Really enjoyed my 1 night stay at Cais. Nuno was super helpful and check in was very easy. Cais use a Salto system, which is very easy to use app. The room was perfect, clean, big, well organised. The room has enough plugs for phones and laptops. Toilet and shower are clean and have everything you need. I think it's impossible to have a fully quiet night in Lisbon, but this room was quite good at keeping the noise out. Bed, duvet and pillows super comfy. The room has a great heating/cooling system, a TV with chromecast on it.