The ProFolio+ keyboard works pretty well, though, with enough spacing between the little square keys and each key offering enough key travel. There's no odd layout compression. I did produce a handful of repeated keys and mistyped characters, however, something I didn't experience on the Belkin or Logitech keyboards.
The brightness of the backlighting is adjustable and it has seven different LED color options (why don't more laptops do this?), but lacks an ambient light sensor, so you may need to play around until you find the perfect lighting level. In terms of key spacing and travel the ProFolio+ is very similar to the Belkin Ultimate Keyboard Case. The battery-powered Bluetooth case recharges via Micro-USB, and a cable comes in the box. ZAGG claims months of use off a single charge -- I certainly never ran down the battery during my week or so of testing.
But again, here's the problem: the ProFolio+ is $129, a good $30 more than the competition -- and more than the similar but not backlit ProFolio model. To me, $30 for the luxury of backlighting feels a little steep. Those who crave it will be very thankful, but for most other people it won't be worth a roughly 30 percent markup on the case cost.
As for me, it turns out, I value adjustable angles and autoconnect features more than backlighting. Especially when that backlighting comes at a true premium. The ZAGGkeys ProFolio+ is unique, but not for everybody. The Belkin Ultimate Keyboard Case still beats it.