I am using this on my site and it's great. I am using Medhi's Coppermine Bridge and it works perfectly with that. I would imagine that it works with the others as well because it's very configurable. There are two minor issues I would take with it, but other than that, it's perfect.
First "problem": It uses the tag, which appears not to be supported by Firefox but instead of showing a small, scrolling module in Firefox, it shows the whole list of 10 images. Thus the module is pretty (in space on the page) large in Firefox. However, I have it at the bottom of the right side of my homepage, which is a reasonably large page anyway, so this is not a problem for me (and I doubt it will be for most people), it looks good either way, I may even prefer the way it looks in Firefox :-D
Second "problem": When you click a thumbnail in the list, it opens the image in full-size in a pop-up window, where I would prefer to have my users redirected to the image's page in the gallery so they can comment/rate it and browse the album.
"Fix": I used this fix for the second issue.
1. Get it working as described in "problem 2" above
2. open joomla/modules/mod_cpgscroller.php
3. Around line 98, find:
echo "filepath$row->filename\" TARGET=\"content\">";
4. Replace this with:
echo "pid\" TARGET=\"_self\">";
This worked for me :-)
I would definately advise this for anyone using Coppermine in Joomla.