Hotel The Crown is a friendly, family run budget hotel in the centre
of amsterdam. You can get everywhere fairly easy. The nightlife is only 5 minutes away. Or If you want to meet other travelers, you can do that in their "smoker friendly" bar. In the bar you can chill out and enjoy your joint and a ice cold beer. Also you can play some billaird or darts there.
Room prices start at €35
From their website:
We like hosting "fun" people who are ready for a good time in Amsterdam!