They're on eBay... My neighbor received one, and brought it over for me to throw on a load-tester. HORRIBLY inaccurate. For example, with a 1 ohm load, the mod should have been firing at say, 4.20v at it's set wattage level.. it would bounce around from 3.50-3.80v. The resistance reading on the Ace was between 1.3-1.4 ohms on the 1 ohm coil.
The cut-off is way too short IMO. My neighbor was also ...... about the battery level indicator being different compared to what was shown in the ad. I guess it's supposed to have an indicator similar to the DNA, but actually is just a numerical reading. The enclosure looked very nice though.. I would love to throw an SX350 into one.

The buttons are plastic. Just going by how nice the mod looks, and how neatly the electronics were done, one may think it could be a good mod.
I advised my neighbor to send it back, and stick with his VTR for awhile longer..
EDIT: LOL! I should have tested the Ace further before my neighbor sent it back. I was curious, and just watched a review which states the mod has NO short protection..

I would have tested this while I was messing with it if I would have known..
I find this difficult to believe.. I don't like to be hard on any reviewer's out there but... here it is.. If anything, it gives a good look at the mod:
https://www.youtube.com/watch?v=Khl7W0jHwNU