I bought it on IGG because I want to support these guys while getting it early with discount (though less warranty), plus I like the Cosmo, but YMMV. They regularly got deals with discounts, not only limited to something like BF. Just bit of a bummer the downgrade from D1000 to D800, but its still a huge up from Cosmo. Plus, slide is more practical, I believe.
PS: Re, backlight: aye, it does (at least Cosmo/Astro, not sure Gemini), and you can put it lower/higher/off (I pref to have it on as low as possible). Even on Linux (Gemian / Debian for Cosmo). There's some minor bleeding, esp on side, but IMO not annoying.
https://www.indiegogo.com/projects/astro-slide-5g-transforme...
EDIT: and it has a backlight keyboard!