Coming from a UNIX and FreeBSD background, Alpine feels very familiar in its deadpan simplicity, and very fast with it! A good selection of packages allow you to get started in both workstation and server roles relatively easily, leaving the configuration largely up to the user. For someone that wants their OS to do exactly what they want with no surprises and aren't afraid of editing config files, there is no better ready-made distro than Alpine. Additionally, many of the lesser review scores here contain issues that have since been addressed, eg. package selection is much larger now, UEFI issues mostly rectified, sustainability as workstation/desktop OS expanded, support and community more lively. To go on that last example, due to Docker switching all images over to Alpine by default, community is much larger and support and documentation has seen an increase. The IRC channel while quiet some days is very helpful, even with some users helping squash bugs and submit patches, and the wiki has some good walkthroughs and tutorials for common Alpine setups. Even if not as big as some other communities, Alpine does not deviate much from convention so basic Linux knowledge applies.
For intermediate and above Linux users, it will only take a few minutes to spin up a new Alpine image, install desired packages, and configure. Newer users beware, you are expected to know what you are doing... Or to at least read the manual!
`apk' is very familiar for users of FreeBSD, as it feels much like pkg-ng in usage, but even simpler. People that are used to—or Lord-forbid, ACTUALLY LIKE complicated and clunky package managers such as apt/dpkg may have a hard time adjusting to apk. It does most of what you expect from a package manager but doesn't break things as much.
The other reviews here say more of the same pros that I would so I will omit them.
The mininal live ISO is only 100MB, it does not hurt to just give it a try!