Thanks for taking the trouble to post. I assume it is with your A2.
There are regular queries about teleconverters in this forum. Yours is the first sample picture with the ACT100 I have seen, certainly there can't been many!
What thread diameter does it use? If it is 49mm does the lens immediately widen - as if a stepup converter is built in?
If you have the time and inclination could you take a few photos and post them on a website (so they can be a decent size). Having an item near the edges that shows off detail would help. If you could include similar pictures without the ACT100 that would confirm that the lens improves resolution and does not degrade the image. And if you still have time, add in some full size crops from centre and edge of the pictures. All this is best with a tripod of course.
Could you comment (and show) the presence or lack of vignetting and at what focal length it starts?
I'm not in the market for the lens - I have the TCON17- but I know how many thousands(!) visited my sample photos with that lens and how useful that sort of information was to me when I made my selection.
The search term - teleconverter - is what most folks might use - so if you put that in the title of your posts I think you'll get a lot more traffic.