I have Choronzon and Antichrist. I think Antichrist is slightly better, but both of them fall short of being anything more than okay.
That Gorod album is pretty awesome. I'm not a fan of technical death metal save for a few bands but Gorod know how to write riffs that are groovy as fuck.
Yes, Gorod's one of the best Tech DM around. Their 2 last albums are just great.
I tried listening to Chronzon several times, but it never clicked. Some say their best album is "Words that go Unspoken, Deeds that go Undone", but I've never listened to it.