I'm definitely enjoying it more than I thought I would. I had the 6 plus before I upgraded and swore I would wait for the "s" or mid model of the 7 plus, but when my wife decided to upgrade her phone, I realized I was eligible to upgrade at the same time so...I gave in, and picked up the 7 plus!
Some features like the ForceTouch are new to me. I actually find it more useful than I thought it would be, especially when typing up a message or post like this one and needing to navigate the cursor around to edit a word or something. It's noticeably snappier than my 6 plus was and with less lag. The speakers are a nice touch and I even noticed the lightning earbuds sound slightly better and distribute stereo sound better too. The camera is great and although I haven't taken many pictures with it yet, the ones I have taken have turned out remarkable. Battery life on the 7 plus is what took me by surprise the most. I assumed that in real world use, it would be on par with my 6 plus, but I'm pleasantly surprised that I'm able to get a couple hours more out of it. Little things seem to work, connect better and with more stability on the 7 plus, like wifi and cellular service. Location services and background apps seem to function better and with less battery consumption. The haptic ("Taptic") feed back is a SWEET touch Apple decided to add to the software. It makes everything come to life and more fun to use! I'm REALLY liking the new home button. It makes the iPhone feel even more premium.
I'm very glad I decided to upgrade.