The slides of my talk at Percona Live 2015 (Amsterdam) are online. It was titled “MongoDB and REST APIs a Match Made in Heaven” and it was meant as an introduction to Mongo, REST principles and the Eve python framework.
Overall it has been a pleasant experience, although I found that splitting 300 attendees through seven concurrent tracks ultimately led to too much fragmentation. People often found themselves with 2-3 interesting talks all happening simultaneously, and just had to pick one.
I could only stay one day so I missed all side events, speakers dinner included, which was a bummer.