Hostel Elf was an amazing place for us. We traveled there with a group of 12 and rented two rooms of 8 beds each, meaning we had plenty of space for all our stuff.
The rooms are amazing for a hostel and the showers and toilets are really good as well!
Communication via AirBnb was super quick all the time and Hana was able to answer all of our questions we had beforehand. The breakfast at the Hostel is free, they have some sweet stuff, cheese and salami and bread and of course coffee and tea :) so really really cool!
We would recommend this hostel for any group of young people that want to check out prague (and its nightlife :) )
Thanks a lot!!!