I think the unspoken consensus is they are too big to carry, so they are relegated to home, range, and open uniform carry here in the States. theye were designed as a military issue general purpose sidearm, and have been adopted by at least one country so far.
Thing is, with the standard 16 round CZ mag in it, it conceals just fine under a loose t-shirt in AZ heat, very easy to carry sidearm with the right holster and belt.