This is a nice component, although Im not totally sure what funcionality it hase over TinyMCE. I installed it because you can edit the layout of the toolbar, which is nice, because the default layout of JCE and TinyMCE caused formatting problems for the profile edit section on Commuity builder. One thing I would tell everyone is make SURE to look at the default settings for the image editor. As installed, JCE gives ALL registered users read/write access to Joomla's core images. I found out when I was doing some last minute testing on my test user account and was suprised to find out that as a simple registered user, I could delete all site images...wake up call!! To change the setting, just go do JCE backend/JCE Plugins/Image Manager and set to administrator, or who know, your Joomla head might get replaced by some beautiful banner add.