To the OP:
If your having problems with your wrists on front squats do this:
Don't hold the bar like you are trying to choke it to death!
While the bar is on the rack, simply have the tip of your finger on it and then slide down under the bar.
When you stand up with the bar focus on SQUEEZING your elbows IN and UP. This will bring them up thus reducing the strain on your wrists. (what happens is that your scapulas drift forward, allowing your elbows to rise and your chest to stay up)
Oh and don't forget to warm up your wrist!!!
--bend them back & front (but don't do it too much)
--massage your palm and forearms a little too.
--take an empty bar, hold it in position and just stand up with it. Do a few front squats with it too.
I learn this from the great Dan John. And when I did my front squats it felt like a night and day differnce.
My opinion... unless you have really fucked up wrists (injury) don't get that thing.