I have the Jordan Olympic Lows and they are one of my favorite shoes for boxing. Lockdown is better than any other boxing shoe made. Period.
They are very light, and there is plenty of ankle support. The grip is great on all surfaces and the shoes are very durable.
There are only a few nit-picky things I've found negative about them:
The tongue rolls up into a roll if you wear them really loosely laced, but these really are not for wearing out to the club. Get some Oreo 4's for that. These shoes are meant to be laced up tight and used for boxing.
The top part of the back that rests on the achilles tends to rub your ankles if wear low-cut socks, but that is easily remedied by lacing them loose at the top or just wearing higher socks.
Ventilation is obviously not as good as all-mesh boxing shoes, so these aren't great to wear with sauna suits.
Other than that, though, these look and perform great.
Definitely worth it, imho.
The RJJ Jordan shoes, however, are more like basketball shoes with no padding on the bottom. Stiff sole and heavy. They also have a reputation for being the shoes that people wear in a pro fight when they get knocked out...
The new Jordans that Andre Ward is rocking are--like people have already said--just like the Nike wrestling shoes, but it seems that they fixed the one HUGE problem with those shoes: the Strap. It looks like they raised the material on the ankle to be much higher than the strap, which is great because the strap on the wrestling shoes was pretty much like these:
but they rubbed out chunks from the front of your ankle, even with socks. I got them at a Nike outlet for $10 and ended up throwing them away (covered in my ankle blood).
The ones I've been looking for (but were only released to the Olympic team, I believe) are these:
The ones I WISH came out were these: