I can’t say that you’re the only one, because no doubt there are others - but they may not post in the forum. However, I downloaded it a couple days ago and it extracted and installed fine for me. Now, that might well be because I was lucky, caught the server on a quiet moment, missed the Daz gremlins while they were on a tea break, or lost my chance to win the lottery by trading for a lucky download.
In cases where you get a corrupt download, it’s always worth flushing out your browser cache before trying again as the previous download often lives in the cache in there and just boogers up the replacement. IE and it’s clones are particularly guilty of that little trick.
Other than that, I can’t really suggest much, except that Daz have been experiencing problems with their web cache and that may affect downloads (not certain on that one, but I guess it’s possible.)