I tried the demo and hoped for better results out of the gate. It had minimal effect size-wise on a 9MB file--9.07MB down to 9.02MB-- a 0.5% reduction. Invisible buttons (with Glow filter) became black objects obscuring the graphics below. Text that was converted to outlines became blobby.

Trying some settings changes, I was able to drop the 9MB file down to 4.6MB, but that seemed mostly due to sound compression. It still had the graphic anomalies above.

I can tweak sound externally for similar results.

According to their site, the $99 version is for personal use only. To use it commercially, you need to purchase the $299 version--actually worth it to me if it worked out of the box and significantly reduced my bandwidth for my larger projects and less time having to tweak my work.

I see potential, but no use for me at this time.

I started programming with 3.5k of usable memory on my VIC-20. The MU logo on this page is 4.8k. Optimization is always in my thoughts.