This actually contains 200 encounters. Instead of rolling d100, roll d20+d10.
Often products of this sort are a couple of dozen entries of the tediously obvious variety. Not here. These are all interesting and sometimes fantastic, with good roleplay potential and plenty of room to improvise. Many are adventure seeds in disguise and could lead to themes or side treks that last for many sessions. Some just inject some fun chaos into the group, like adopting a kitten.
This has great value in a hex-crawl sandbox game. When GMing a sandbox, the constant improvisation can lead to repetition or burnout. These encounters are a great way to instantly inject some pizzazz and stimulate the GM's creativity. You could pick, but as a GM I like to roll and be surprised.