Calculation of positioning tiles to create a 3D illusion and Mapping of an actual location of an object to a location in isometric view is handled by the toolkit.We completely eliminate the overhead of rendering 3D scenes, and hence saving a lot of money by taking one of the hundreds of sprite sheets out there.We can save a lot of time since we do not have to model/texture/rig/. The advantages of Isometric style 3D games are obvious.But when it comes to the Isometric games you need a lot of additional code to solve common problems like sorting orders, intersecting sprites and continuous movements.
Here is an overview of Ultimate Isometric Toolkit: Step 4 Overview of Ultimate Isometric Toolkit