I actually did swap my 2013 Nexus 7 for a Venue 8 Pro. The Nexus is a great device for what it is, but I found that I wasn't really using it as much as I thought I would, largely because it's so similar to my phone in what it can do. It just wasn't that useful to me in that sense and wasn't providing much added value to my life.
The Venue 8 Pro, on the other hand, has very clear advantages over my phone and their roles are distinct and therefore useful to me. It goes without saying that the Office experience is far superior, but besides that you are basically getting the same utility that you would from your PC, which means everything you browse on the web is exactly how it should be, Flash is supported, practically every Windows program you're used to will run on it (though the stylus definitely helps in desktop mode), you can connect any phone directly via USB and export everything on it, and of course no file manager app in the Play store will ever rival Windows Explorer.
Pros of the Nexus 7? The screen is still noticeably sharper, the YouTube experience is still slightly better and I did actually use the wireless charging. Other than that, I'm glad I switched.