The Droid DNA ships with custom HTC software based on the Android 4.1 Jelly Bean operating system. The setup is essentially the same as what's used on HTC's One line of phones. I covered it extensively when reviewing those devices, so rather than repeating myself here, I'll refer you to that coverage for detailed thoughts and observations.
In short, I'll just say this: HTC's user interface is less overwhelming than some manufacturers' takes on Android, but it still pales in comparison to the pure Android experience that Google creates. I found the to be interface cluttered and visually inconsistent, with countless changes made at the expense of user experience. The phone is also loaded down with bloatware from both HTC and Verizon -- nearly 20 programs that you can't easily uninstall.
At a Glance
HTCPrice: $200 (with a a new two-year contract from Verizon Wireless)Pros: Outstanding 1080p display; high-quality build; fantastic cameras; LED indicators on front and back of phoneCons: Inconsistent, glitch-filled performance; substandard call quality; underwhelming battery life; limited internal storage; no option for external storage; cluttered and visually inconsistent UI; non-optimal button and port configuration
Remember, too, that devices with manufacturer-modified versions of Android tend to lag behind pure Google Android devices when it comes to OS upgrades -- a concept exemplified by the fact that the Droid DNA is shipping with a less-than-current version of Android and no current guarantee as to if or when an upgrade could occur.
After spending time with Google's pure Android 4.1 and 4.2 OS and the excellent user experience those platforms provide, it really makes you wonder why certain companies insist on trying to "fix" what isn't broken.