I (personally) like the UI changes. I was using the 1.5 alpha versions in combination with the 3.5 beta since June and was quite happy with the combo. However,

I (personally) like the UI changes. I was using the 1.5 alpha versions in combination with the 3.5 beta since June and was quite happy with the combo. However, in the last 5-10 releases of the 1.5 alpha, the performance has severely regressed. Often the inspector doesn't update the console with html selections and the console becomes unresponsive overall. I was having to close and reopen the tab of the site I was working on to get the inspector working again. I just switched back to the latest version of 1.4 with 3.5.1 and it seems to be working quite well.