I had a Droid Bionic, the first dual-core 4G LTE phone on Verizon. It was ok but the lack of software updates, issues with 4G reception and the random restarting annoyed me.
I went to a S4 this year when my contract came around and honestly, its a much better phone. Faster, smoother, wayyyy better battery life and screen. Best of all it doesn't randomly restart or drop my 4G when it feels like it.
Motorola needs to make better phones. They used to be the best Android phones but now HTC and Samsung have leap frogged them in so many ways.