YOE: 12

Let me start by saying the overall experience was very nice on the day.

A room was assigned for the entire day and interviewers followed the time table to almost exact minute.

I wont be posting actual questions but can tell it was 3 rounds of codiing and 2 of design and when you are interviewing at facebook do read about memcache and news feeds.

Coding i think was easier if you can do LC hard , i think i got 1 hard 1 medium and 2 easy .

Key thing is to take initiatives in design , share the big plan (sequence diagram ) or some boxes before diving into one (could be diff apporach).
For coding focus on not just null empties but duplicate and other corner cases ,goes a long way.

All the best if you have one coming up.