Prefix interview questions

2 interviews, the first was fine basic info and getting to know me. Then came setting up the 2nd interview they company was all over the place they told me I would meet with one person but another ended up reaching out with no notice. Almost thought it was a scam. After both interviews I didn’t hear anything until I got an offer letter via Docusign. No one called or emailed me to offer me the job til hours later. Overall not a the worst experience but they were not very professional.