So this thread has appeared again! it's been a few years since the last one
My answer is the same as then, AGA was cool but slow. I think we can blame the later commodore management for that, we all know by now what Haynie and crew wanted in there.
Even so, for viewing pictures, creating 2d artwork, and viewing 3d renders- it was cool, hundreds of thousands of colours in high rez cool (for 1992). Just a shame they never got workbench running in HAM/8.