Right now I have a ZAGG backlit keyboard for my iPad Air 2 and it is extremely bulky, but really awesome at the same time. It's heavy! That being said, I to ordered the Smart Keyboard before realizing the Logitech was there. After reading this
http://www.theverge.com/2015/11/11/9711284/logitech-ipad-pro-keyboard-case-announced made me ponder about the Smart Keyboard. Another user had posted he/she had a Logitech keyboard and said it was amazing. So after reading his/her post and then reading that link above, made me cancel my order and order the Logitech. Seems really nice. Never owned a macbook but based off of the pics the keyboards are almost identical. I love my ZAGG and thought to myself the same thing. The Apple Keyboard looks really flimsy. If I don't like this one, I'll just return it and go for the Smart one.
If I would've known that I could've picked up the keyboard today, then I would've done that instead. But, being that the iPad Pro won't ship till around the 25th for me, I might as well wait. Besides, Apple already took my payment and tells me I can't cancel anyway.