I'm just getting ready to push instant search as a major feature on a client's web application, as both public-facing & admin-side. The MeiliSearch team has been great in terms of communication regarding issues, new features, the roadmap, etc. They're also moving quickly, constantly adding new functionality that has been useful as I've been working on the integration.

Depending on what you're planning on using it for, make sure to review the documentation, and check the GitHub issues/discussions. For example, I've had to use workarounds to handle some lacking auth/permissions support, but they're currently working on improving it.

Best part by far is the performance. And memory requirements is completely reasonable, depending on the size of the database.