I have booked a twin room at hotel Casa (the conference venue) with two beds and I'm looking to share to split the costs. 163.50 euro per person for 3 nights. Check-in Saturday June 17 and check-out Monday June 19.
Please contact me via email: rebecca.bergsland [@] gmail.com
I'll keep this post here as long as I'm still looking.
See you at QS17 in Amsterdam!