This is a fantastic game system that can handle just about any type of mecha game you want to run. From giant lumbering Battletech-style mecha, to nimble transforming Robotech, to beam saber wielding Gundam, and so much more. It can be a crunchy system, but it's not hard to tailor it to your tastes. Take out or add to get as fiddly as you want to be. Hands down, my favorite mecha system.
The only reason I don't give this product five stars is that the scan for the .pdf is okay. The cover is beautiful, but the interiors are a little fuzzy and there are some lines from the scanner, and in some places shadows from the printing on the next page. There is nothing terrible about it, but I've come to have higher expectations for the quality of the images. Plus the artwork is beautiful and the scan quality takes away from that.
This is especially surprising because the companion book, Mekton Zeta+, is a beautiful file! Sharp, clear, and just what you want in a .pdf product.
But, if mecha games are your thing, this is the product for you.