I can only recommend this keyboard. I own "Das Keyboard" with MX-Brown switches and Razor's "Black Widow" with Blue switches. I would buy one again immediately. The keyboards with the rubber stuff are a real pain.
The only thing you have to remember is that the mechanical keyboards are a bit louder. The MX-Brown are quieter than the MX-Blue but a bit louder than the usual cheap office keyboards.
The Razor keyboards have a hole in the packaging so you can test 4 keys, but they are not the same switches, the difference is that the Blue have a distinct click and a little more resistance than the Brown. Mediamarkt has mechanical keyboards on display, but you can't test "Das Keyboard" like this anywhere.

Unfortunately, I don't know of any place or supplier that effectively displays this product. You almost have to rely on test reports. But a friend of mine has this keyboard and the keys have a very good touch, I think.