My boyfriend and I stayed at BB IJ for 4 nights in the middle of May in the cottage room and we really loved our time. The room was adequate size (we had 2 large suitcases and a back pack) and we really appreciated the fridge and coffee maker right in the room.
As far as location goes, it was ideal. We were right near the tram so getting down to Dam Square was simple and quick, and it was nice to not be staying right in the "main drag". We also were able to walk to and from Centraal Station in 15 minutes and the entire walk was quite scenic so it did not feel like we were deprived by not staying right in the heart of downtown.
Upon arrival, Tina and Kamiel had a sheet for us that was very informative including tram stops, restaurant recommendations, and other useful information. We took them up on pretty much all of the suggestions and were very happy we did!! It definitely added to our Amsterdam experience.
Both my boyfriend and I would stay at BB IJ again if we make it back to Amsterdam! Highly recommend it. It was also significantly cheaper than any other places we looked into and we didn't have to worry about shared bathroom (which some friends of ours that we were travelling with had in their hostel).
Towels were our biggest issue. The ones provided were small and they were not changed at all during our stay.
