Chris,
Artlantis Studio (and R) are pretty intuitive (especially compared with prior verisons - 4.5, 4.0 etc). Download the demo and the tutorial videos and try it out. An hour or so will get the basics; another hour or so for animations. The Artlantis forums are pretty active.
Drag-and-drop and immediate feedback for materials, lighting, etc are huge benefits.
Most frequent complaint is the lack of a printed manual with complete "how to's" - and occassional Franglish that requires deciphering.
Here's what I would guess is the top issue that someone might have when first taking an ArchiCAD model into Artlantis via ATL export: ArchiCAD materials come across properly oriented, but they are implemented as applied textures. A new Artlantis user might want to drag and drop a new material onto an ArchiCAD mapped surface, but will have to delete the ArchiCAD texture via the shaders panel first before anything will be visible. (Note that there is a fair amount of power there, too - you can apply multiple textures - even by drag and drop from Finder or Explorer and vary the opacity/etc of each - and also drag non-tiling textures - e.g., manhole cover or carpet, and drag them to the desired location on the surface. All visual.)
Cheers,
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sonoma 14.7.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB