In my very humble opinion, this pretty much sums up all the gear we use. A certain product, whether it be sticks, drum heads, pedals or drums themselves, will always have it's share of supporters and detractors....but the important thing is, 'How does it make us feel' when we use/play it?
Perception is everything when it comes to our gear....doesn't really matter if it's actually real or perceived, if you find it works for you personally, use it.....if you don't like it, then there's sure to be another product waiting on the shelf that will gain your approval.
Hence the best reply to a question like "should I buy a demon drive or an iron cobra?", is.....get your feet on both of 'em and see which one YOU prefer. One man's trash, is often another man's treasure.