I've been trying to upgrade but since the corporate IT structure here involves a black hole and several disturbances in the space time continuum, it's taken 1 little disk 2 weeks to travel 1/2 mile across town. And it's still not here.
And now on to my point, I would also be interested to see what experience others are having with this version.
I have upgraded to 4.6 and found out only one problem dealing with the uninstall of 4.5. It appears that the uninstall portion uninstalls more than it should which can cause problems when you try an upgrade using 4.6. This isn't a 4.6 issue but could impact your target application when trying to automate.
My suggestions are as follows:
1. if you can wipe out your pc and re-image using a clean windows image (clean is defined as to whatever your standard windows image is for your company) and then install 4.6.
2. When uninstalling 4.5, you will get a series of prompts asking you to remove files from your hard drive. say "NO" to all of them to prevent complications occuring to your target application when you you complete installing 4.6.