Mesh is written from the ground up to run on the web. It is hand crafted and optimised to only do what it needs to make games load and run fast. No kitchen sinks here.
Pretty Ok Graphics!
Dynamic lighting, large texture support, normal maps, and post processing will make sure any experience built with Mesh looks like it is state of the art (by 1997 standards anyway).
Quickly and easily create custom content using a solid tool set. Use Trenchbroom to create levels, and create scene props and models using Blender - or don't see if I care.