What do you like best?
After designing something in other software - I use Sketchup mainly - the model is exported to artlantis; Once done that, it is very easy to edit and associate materials, lights and scenes. It is possible to get very fast renderings with good quality.
The Batch companion is very useful - You can "Render later" lots of scenes in the same time, while working on other stuff, or sleeping, without the need to hit the render button for each scene. And it is possible to save scenes directly to a photoshop file, witch saves time for post-processing.
What do you dislike?
It is kind of hard to edit the material shaders, and, if you find something wrong or have to do adjustments in the model structure, you have to do the whole export/import process between the modelling software and artlantis, though you can retain material, scenes an other stuffs settings.
Recommendations to others considering the product
One has to do their homework - You get better results when the imported model is well organised and detailed.
What business problems are you solving with the product? What benefits have you realized?
I use it for more realistic presentations of architectural designs. With it I get good results fast with accurate lighting properties.