I had two phone interviews arranged through their HR person. Each last about 30 minutes. I didn't get or find any email addresses for the interviewers so unfortunately I wasn't sure how to send any thank you notes (except quick ones through HR). Both interviewers were nice to talk to, happily answered questions about themselves, the company, the position, future issues like moving away from COVID, etc. Overall I had a good experience and two pleasant conversations, although the reviews here do make me pause and I'm not sure if I would have accepted an offer if one had been extended, especially as I had other options.