Foremost, JoomListings has the benefit of being more 'simple & clear' than some of the other classified extensions. The categorization of different adverts is simple and intuitive - a definite plus for most web site visitors.
On the other hand, there is still a lot of development to be done - fair enough, I think given the low cost and beta status. There are bugs, and while the support from JL is excellent, they are going to be around until a release candidate arrives.
We customized JoomListings for a JomSocial installation - and while some of the coding was challenging, I can't really fault the software - which isn't truly intended for production sites at this point.
Recommended, provided you have some development and programming experience.
While there is very little documentation available (which can lead to some mistakes by administrators) the Joomlaxi support is very responsive and updates come out frequently.
The developer has clearly spent time thinking through the different challenges and situations associated with adding maps to web sites.
For example - I needed a map plugin that would work with multiple domains - and the plugin parameters support this feature.
Additionally, the ability in the parameters to specify many attributes - even lightbox style links attributes - is a welcome feature not as commonly found in other Joomla! mapping bots.
Note : Watch out for Conflicts : IE wouldn't display transparency of the corner image on my site, due to a conflict with other Java on the page. If that is the case, you may be off better just adding your banner into the template.
Add to the top of the body in the Template:
and then add this to your CSS :
background: url(../images/corner.png) 0 0 no-repeat !important;
On the other hand, my RSGallery versions never seemed to align well in the general category display, and better inline documentation for the numerous display options would have been helpful.
There's also the question of display. Some of the newer Joomla Extensions allow for a nice automatic display of all images in a folder, in a content item - eliminating the need for file-uploading, labelling, etc.
However, if your goal is to have more interactivity (comments, ratings and other features) RSGallery2 accomplishes this well.
Pretty good component - just make sure you are using the right one.
Whether or not it can ultimately be useful is a different question. Most of the project-management-systems out there have the same problem - accessibility and ease-of-use of non-techie members/employees.
So although the features in the project are well-crafted, it's worth considering that accessing them requires a few clicks within Joomla.
Great for collaborative project work in small groups, but there may be some issues for larger organizations. Worth trying out, definitely.
The Calendar has a nice 'category' system and modules for listing events, and is great and easy-to-use for basic non-techie site administrators.
Good Calender - a couple more visual styles would be useful though, as it has a default design that will not work for all sites.
Not so with JCE : It's a great editor, with easily-identifiable tool bar buttons, step-by-step options for adding links & many more user-friendly features.
I've been editing Mambo / Joomla for years - JCE is the best editor out there by far - and my clients can use it.
Both the free and commercial versions are great and well-worth checking out.