If you aren't concerned about the longevity of your transaxle, go for it. If you are, it's probably a really bad idea. My old Acura was an automatic that worked in a similar fashion to the atx foci. It had over 200k on it, and I'd paid a couple hundred dollars for it, so I abused that car and beat on it more than I should have (was my first car). Needless to say, I ended up destroying the automatic transaxle on it.
07 ZX3 SE MTX - enjoying every minute with it
MacBook Pro 15"