Overall Satisfaction with MySQL
We use it from time-to-time, as the database solution for our smaller projects which requires a relational database. Usually used by the whole team, integrated into the production chain, and nearly everybody uses it for testing, smaller modifications in the data model, or when installing for a localized development environment.
- We usually focus on other aspects, but as a database, I think it was a trustworthy solution business-vise.
A bit on the more complex side, but definitely one of the more popular solutions between our customers. As a stable alternative to the sometimes really pricy Oracle DB, it performed well for most of our not-database-heavy projects. It was a bit slower than no-SQL solutions on no-SQL tasks, but that's natural I think.
When a classic, small relational database (I mean small as a small number of tables, not records necessary) needs easy to install database with easy to find tutorials, that's free, robust, and very well documented.