I only visit twitter through links shared by friends, and ever since their last redesign 50-80% of the links give an "error loading" message which may or may not go away after reloading the page a few times.

When/if the tweet finally loads, it shows totally unrelated messages at the bottom. I still have to click on it and load it again if I want to see the comments thread.

The upside is that the redesign was the most effective way to keep me completely off twitter.