What I can say is that I don't have any major quibbles with the Apollo. My only gripes are with the overly bright lock keys and the wonky wrist rest, but those aren't deal breakers. The Apollo, at least in this incarnation, fulfills the most important criterion of all for me: being comfortable to type on all day. I'm particularly glad that Rosewill offers this keyboard with Cherry MX brown switches, which I think strike the best balance between typing and gaming comfort.
There may be better high-end mechanical gaming keyboards out there. But the Apollo is definitely a pretty darn good one.