#1 dislike is that each message seems to use up way more screen real estate than it used to. That might be OK if you're using a scrolling mouse and have a fast internet connection, but on a notebook computer with only a touchpad, and maybe a slower connection, having to navigate to a higher number of pages to read a thread will be a little annoying.
The colors are sleek and to my eyes trendy but I was just getting used to eBid's unique blackcurrant and lime. It's good to stand out from the crowd.
Didn't often purchase because of closing listings to the left, but they did take me into browsing at the seller's other offerings, which if everybody else went there also, would be good for business.
Not to be a complaining luddite. I appreciate a lot of work must have gone into this upgrade and trust it will work seamlessly.