Joel,
Most of the bugs centered around me begining able to use the FCKeditor with Firefox. I try and use the tool as out of the box as possible and my upgrades usually go very well. (learned that way back in 1999!) I allow users to customize things like tables and graphics sometimes outside of CSS and need to use either the supplied RedDot Text editor or FCKeditor becuase of the easy end user interfaces. Most of the FCKeditor issues are the same as in version 10 if you are using that version. Here is a summary of my bug tickets for FCK. Jump Marks will set in content but not be found to link to.(You can set a jump mark target in the text and then link to it in the RAD editor if necessary) I use the Database to house my assets and there are issues with using FCK to link to files, the issues are fixed partically in a HF but it is only working for certain file types. (Images but not PDF files, weird but true) My workaround for users who want to use Firefox and FCK is to upload their files using the RADeditor (in Firefox) and then switch back to FCK. I only recommend this for seasoned editors who can understand the concept. I have all levels of users on the system. There are still limits on file size due to IIS (out of the box) on MS Server 2008 R2. I use MS SQL 2008 R2 as well.
If you use the database to house your assets and do not use the Asset Manager (we do not own it) and try and use the Folder jobs in SmartTree named Asset Manager Maintenance or Asset Control they do not work in version 11 with HF1-3. They work fine in version 10. The only work around I was offered until the HF comes out with be to Transfer Data Storage folder content into the local server. This is not an option as there is no way to un-convert it back to the database storage for ease of Exports and Imports.
One huge note with using the Database to store your assets is when your publication jobs run they will publish ALL assets even if they are not modified. This is in a bug ticket I have too. BUT!!!! even with all my assets publishing from the database storage my publication times are cut in HALF! I can't wait till the bug fix for the database storage publication to be fixed becuase I think the publication will be even faster.
I have not noticed anything major in the RedDot Text Editor if you are using that BUT if you want your users on multiple platforms. Letting them switch between IE and FireFox and highly customize things like table/images users will have to stick to one platform (IE or Firefox) or else some of the code will be wiped when the go back to the RedDot Text editor becuase of the way it codes things like Image right/left etc and Table colors.
I can explain anything else in detail if necessary I don't want to get to long winded.