I just bought one of these and really like it.
I do wish there were a graphical interface to remap keys though, perhaps something similar to the keyboard layout analyzer http://patorjk.com/keyboard-layout-analyzer/#/config
, since making macros for some of the keys that split shifted and unshifted characters in a layout -- like / and ? on a standard keyboard -- is a bit of a pain. I like having both / and ? unshifted. You also have to make these macros for both left and right shift versions, since it treats both differently. The keyboard really doesn't like having the files for text remapping edited with an outside text editor, either, which makes the simplest method of creating a layout editor less intuitive. But on the plus side, once you get a form you like, it is really performs well.
So all in all I still like it a lot, and I think I will like it even better as the firmware and support programs are improved.