The accuracy of Chex Quest support in ZDoom

[Blzut3]

Since every time I visit here I see people mentioning how we messed up the cheat codes (and I recently got in a discussion on the completeness of Chex Quest support in various ports), I was wondering what is the opinion of the community members here on the accuracy of ZDoom's Chex Quest support?  If there are any problems please post them in this thread (including the before mentioned cheat codes error), and give me exact details on how it differs from chex.exe.

Feel free to include anything from chex3.exe if there was anything changed that ZDoom doesn't replicate.  Though do make sure that you mention that the problem is with Chex Quest 3 support.