Overall Rating: Green. This means that
Tiny Servant is a good spell.
Overall Notes: In a way similar to find familiar, the servant can be used to scout or to stand guard for you. Unfortunately, it's not quite as useful and requires a 3rd-level spell slot to produce.
Class Specific Ratings for Tiny Servant
Artificer: See this amazing post on GitP for hilarious ways to combine your tiny servant with your Spell-Storing Item. This is the kind of stuff Artificers were made for.