We upgraded my mom to the Turbo yesterday. I didn't get a LOT of time with it but it definitely has a different feel in the hand (she got the Ballistic Nylon one). It's a bit heavier than my 2013 Moto X but she should get double the battery life I have. Really, she could have gotten any phone in the store and been better off than she was with her Droid Razr, but when the guy works the deal he did with the plan and they practically pay you to get the newest phone on the market, you take it.
I should get more time with the phone as she has questions or problems, or as I continue to help her set it up. I didn't get a ton of time with it because it was 8:30 by the time we were done with that and getting dinner and I hadn't been home in 14 hours.
What I WILL say, that phone boils down to a Moto X with a HUGE battery and a 4K screen. It has all the cool stuff that makes the Moto X the Moto X (active display, Moto Assist, touchless control, nearly-stock Android experience) but adds that large 3900 mAh battery and (I'm pretty sure) Qi charging.
I wasn't too anxious to have her get a GS5 or a Note 4, I just felt there was going too much extra stuff there that she'd never use. The Sony wasn't really on my radar.