I look forward to it. I regret not being able to be more active in the beta, so that I could see more of the benefits to upgrading, but I will definitely be upgrading. I consider it kind of my responsibility. That's the only true way to evaluate the need for an update, is to try it. I'm hesitant about the ribbon, but considering that they allow for a crap load more customisability and control over it than other features before it... I think it'll be a welcome addition after some growing pains.
I don't see anything worth worrying much about, really. I think the whole hullabaloo about this being a bad release was over the introduction of the Ribbon, but most of what people complained about (myself included at first) is stuff that's not even an issue... mostly to do with customizing it, or even just being able to turn it off and use your system like you used to (which can easily be done with provided sysvar introductions)
There's always a bunch of little tweaks and changes that go undocumented in the pre-release preview, because other stuff that seems bigger and more important will always take the buzz, so I'm looking forward to the upgrade, as usual. I look forward to seeing if they upgraded the rendering and visualizations again or if they're near done with it for a while.
I also look forward to the free licenses of Impression. I downloaded the trial and messed around with it and I think it'll be fun... definitely a great tool for some preliminary layout stuff for getting floor plans, building sizes, and all that stuff done for some of these condo/townhome/light-commercial developers that seem to have all gotten word of our talents, here. Those types can flip ideas, layouts, and floor plan ideas like the ebb and flow of the tide, so having a tool that's easy to quickly change up and "sketch" with while still providing a cool "eye candy" and impressive, scaled, product is a neat idea.