Redis has a great developer experience. It's super easy to spin up and to add to applications. There have been a few warts though when it comes to operational experience in production. I really miss things like administrative connections and tls for client connections that I get in the relational db world. Also, using redis in highly regulated environments is challenging because you have to meet all sorts of compliance requirements. As a result, I find myself jumping through a ton of hoops to get redis to work there. It'd be great if it "just worked" in that arena.