Just tell the scraper the quantity of rooms you want and all listings will be open in your default browser.
The default is "3 Rooms". To change this, edit scraper.js and adjust the constant ROOMS.
In your Terminal, before the first usage run npm install and then node scraper.js everytime you want to check their listings.
Avoid overusing this tool. They might block your IP address or change their HTML structure to make it harder to scrape.