CKeditor with upload

Good of bad in what context?

Allowing members of the public to upload porn to your website - not a good idea
Allowing logged in and authorized users to upload limited sized images to documents, a good idea.

Letting users upload images or files always should be treated with extreme caution. Personally I try to avoid it but if it really is required try to keep as tight a control on it as you can.

There is nothing that is absolutely good or absolutely bad, and JS is nothing to be scared of, it is just logic performed at the user end, rather than the server end of your site.

Best wishes,

Paul.