1. Some ppl will find it weird to do fast double tapping on Blue, due to the registering, tactile, clicky and re-registering points being synchronized. Though, most ppl still enjoy their blue switch. So I suggest better try it out personally to see whether it suit you.

2. For CM Storm Quickfire Pro, it is literally a clone brother of Razer BWU(they came from a same OEM - iOne). Ppl tend to avoid iOne made board if because it is known to had bad QC in the past, not sure now. Also, iOne board having the less popular (and thus less favorable) modifiers size and spacebar length, which made changing keycaps a hell job for it...