So I signed up for the 7 day free trial of Playstation Vue. I must say that I was pretty impressed with the service. While using the app on my ATV last night, I did not experience any of the lags/freezes/hang up's that plague the DIRECTV Now app. I'm still on the fence about the channel guide though (I like it, but I think I prefer the DIRECTV Now guide a smidge more).
VOD appears to be about the same as what DIRECTV Now offers. I was hoping that Vue's VOD library would be a bit more robust to be quite honest. I do like the DVR feature as well; I'm hoping this is something DTV Now introduces relatively soon.
Considering that I have AT&T and can stream DTV Now without it impacting my data usage is probably the deciding factor here. Not that I stream video over cellular data all that often away, but it is nice to know that I don't have to worry about using large amounts of data if I'm watching a show on my phone when not on wifi.
I'm going to continue to make use of Vue until the 7 day trial is up, but I probably will stick with DTV Now for the time being (especially since I'm locked in to the $35/month 'go big' package).