Herein is a fascinating collection of little snippets of information to aid the design process. Some might spawn a whole adventure, they might make the difference between the characters deciding to go there or choosing another destination...
The option of rolling a d100 is there, but unless you start with this product you may get a result completely incompatible with other data you have on the planet you are developing. Now, that might make for a really intriguing planet... but unless you are able to come up with a rationale for why things are the way they are, it may be best to roll again or just pick something more suitable. You may prefer to read through and select appropriate aspects instead.
Quite a lot of the quirks are planetological in nature and characters undertaking surveying duties might be called upon to investigate and explain. Indeed the majority of the entries are suitable subjects for investigation, and hence possible topics for adventure.
If you enjoy designing planets to populate your universe, this will be a useful resource to have to hand. Just remember that some planets are really dull and predictable, not every one will have one of these quirks!