The Tex Shinobi is an excellent upgrade if you've got the cash. I've been using one for a few months now and absolutely adore the typing/tracking experience.
I'm using silent reds on my board, but they're a little rattly. If you like linear switches, I'd probably suggest the regular reds for a uniform, smooth feel. The Bluetooth module is also a nice investment, but certainly not necessary.
Again, stupidly expensive keyboard for what it is. However, I can totally see myself picking up another one as backup in a few years. It really is a layout that feels right.