If you click the reply button twice it takes you to the advanced screen/new page. Personally I like the quick reply boxes.

I have noticed that image tags don't work anymore. Say you have a link to a jpg, you can have the image show up by pasting the link and placing [img]url here[/img]
tags like that.
Now it doesn't work, and having to download an image to my pc and then upload it as an attachment is a pain. Most of my pics are from my phone and I just upload them straight to photobucket rather than my pc.