- Overall size. My previous phone was a Nexus 6, and it was too big to use comfortably, even with my fairly big hands. I only remember dropping it once (no damage, had a case on it), but I was always having to be careful with it. I don't have to with the Z Force.
- Speed. Very fast & responsive, usually the only time it lags is if there's a network connection issue that slows it down.
- Battery. I don't have the battery mod, and so far I'm not having trouble getting through normal, or even semi-high use days. I also like knowing that if I do find myself needing more battery, between fast charging and the available battery mod, it shouldn't be an issue.
- Fingerprint scanner. This is on a lot of phones now, but it's the first I've had, and I love it.
- Fast camera. My Nexus 6's camera was/is really slow to load, so I appreciate that the Zf camera comes up very quickly.
- Moto features. 2 phones back I had a Droid Maxx, and I missed some of these features with my Nexus. The Nexus is supposed to do "always listening", but it never worked well, where the Motos have. The chop for flashlight & twist for camera is wonderful too.
- Durability. I like the thought that I can't shatter my screen. I've never cracked a screen, but it's still nice to know. I did put a glass screen protector on, mostly for scratch prevention & feel.
- Mods. I got the speaker mod with the BestBuy deal, and will probably use it on occasion. I might eventually want the battery w/wireless charging mod, for long trips & such. I'm looking forward to seeing what else they come up with.