Good, but not as Great as I hoped. Rated 4 out of 5 stars
This is a very fine extension. It does a lot of things nicely. Might I suggest though that everyone ONLY use it to augment FireFox's bookmarks, & not replace it, or place it in a position that it is to highly depended upon. I suggest highly, that you not Import your FireFox Bookmarks into GMarks. I don't know if it is the extension or Google, but each & every time I open the browser & sign-on to Google there are orphaned bookmarks within partial folder names. Now I could place them via organize, but I have hundreds of sub-folders & no sure/easy way to find where the orphan belongs.
The only things I would like to see in the next version of GMarks is one that has been mentioned before, but is extremely important --- Accommodation for 'MANUAL' sorting as an option ----- Also, I would also like to see "Close' the bookmark tree within the Organizer's options menu. It is a real annoyance when you have 60+ sub-folders, each with a handful of their own, all open without any quick way to close them! On the whole, I really like it, but there are modifications needed to make it as good as it could be.