Overall, my interviewing experience was pleasant, one of the better ones I've had. The interviewers were friendly and they helped when I struggled by giving hints or asking extra questions. I liked that they did not ask any behavioral-type questions; we went straight to problem-solving every time.

The phone interview was very similar to the video they published on their website. It had three "stages," more or less, each one slightly harder. We didn't run the code, but it was supposed to compile (roughly). At the end, I also had to do some complexity analysis.

The "on-site" interviews were held online. There were at least two, back-to-back, one-hour-long interviews. Then, you get a break, and they decide if they still need to give you one or two more interviews. These ones were similar to the phone interview, but I didn't do as well, so they might have been different towards the end. After the interviews, you also get to talk to one of the employees and ask them questions.

They give you a response fairly quickly, two work days at most.

I'd say the problems were mostly implementation-based. They don't ask complex algorithms. I've seen a few similar problems on Leetcode, where you model a complex data structure or simulation. They seem to value correctness of the code the most, so understanding every single corner case and avoiding off-by-one errors seemed the most important to me.