...but I'll start with these two:

1) In the updated forms, they've removed the "Uploads" button that used to be right next to where they required that you provide whatever applicable uploads to the credit you were working on. Now, the form still tells you to provide these uploads, but there is no obvious link as to where they should go. Those of us who regularly use the website know that you can go back to the credit form, under the credit you are working on, and click the Uploads button there, which will take you to where all related uploads should go. If you are new to LEEDOnline (or just not as computer/website savvy), you're left staring at the form trying to figure out where to put your documents. Additionally, having to go back outside of the form forces two additional 'clicks' for navigation. I'm sure we all know how painfully slow LEEDOnline can be, especially during the main day hours when all time zones are working, so any additional navigation adds a significant amount of downtime for frequent users, such as myself.
I left feedback on this issue, and actually got a quick response from GBCI, as follows: "We would like to inform you that, as per customer's feedback have removed linkages between forms, upload buttons in the forms and have generic upload in the upload page. Customers can fill out entire credit form and then go to uploads section to upload all the files at one place and at a time. Which will reduce the time navigating between upload tab and forms tab. It is simpler and quicker for customers to work."

Do they not realize that much of the time, it is not one individual filling out the entire form at once, and uploading all items at once? Also, if we're QC'ing completed items, we can no longer toggle between the form and the uploads to review sections. A separate problem with the QC portion is that, for the downloads, you must individually click on, open/save each file in order to view it, which is additionally tons of processing time. Separate issue, though.

2) The updated forms that I have come across so far for my v3 projects are no longer linked to the PI Forms. This was one function that I loved in the update between v2.2 and 3 websites. It eliminating tons of problems with continuity of information reported, especially in regards to occupancy, space types, and SF takeoffs for the building and site. Why would they remove that function?!
I'm hoping this is a temporary glitch that will be remedied soon. I also gave feedback on this issue, but have yet to receive a response.

Ok, that's all my venting for the moment. Argh.