I am looking to replace the standard handguards on my mid-length AR with one of the quad rail handguard systems that snap on without gunsmithing.

I have heard very good reports from people who use the Surefire system, but I have heard nothing on the Midwest Industries setup (which appears to be less expensive).  I know that MI makes good stuff (as does Surefire).  Does anyone have an opinion on what the pros/cons are with the MI handguards?  Are they solid?  I am only planning to mount a vertical grip and light on the foregrips, and NOT any sort of optics.

Thanks