I just upgraded from the Pro 10.5 to this Pro 11. I really wasn't going to, but after holding the Pro 11, it was worth it for me (especially during a sale).
Honestly, one of the other main reasons I upgraded was for the USB-C connection. But if you just use the device to browse the web and do basic stuff, it may not be worth the upgrade. It took me awhile to take the plunge, but I'm glad I did. The downside is buying new cases and the new Apple Pencil 2. Oh, but on the topic of the Pencil 2....wow! I think it writes so much better. The lag is practically imperceptible.