I would like to echo a previous review written here. I also had multiple interviews, spoke with people in person, including a member of the executive team, and discussed their verbal offer. I found nothing unusual about the process until my post-interview experience.
In a similar experience to the previous reviewer, after discussing a package and being told that they would reach out again within days, I never heard from anyone again. Despite my reaching out multiple times to check in, no one reached out and my emails were ignored.
I am not sure what could possibly be the reason for acting that way, but it is extremely unprofessional. I can only imagine it is a sign of internal culture.