So I went to Best Buy this afternoon and decided to blow off some money. I couldn't find it on the website, so didn't think they'd have it, but it was sitting on the shelf with the other Wacom stuff when I was looking around, so I picked it up.
I like the carrying box that comes with it. Glasses makers, take note - I'd probably actually use your box if it was as nice as the Wacom one I just got.

Not too cheap, not too fancy, just in the middle of the road. Very easy to open and close, and I love the little space which makes it easy to pull out the stylus without too much hassle.
The nibs are pretty thick compared to the one on the Bamboo Stylus, taller, but thinner. They don't sell replacements yet, but I bet in a few months they will and they'll coming various sizes. It comes with three of them to begin with, so it might not be until a year or so that you really need a replacement anyway.
It is just a plain old stylus to begin with, so you can use it on the iPad as is, and on any other capacitive screen. But to get the most of it, you want to use it with the apps that have the SDK for it built-in.
But here's the thing - While it DOES support a handful of apps, you really want to just have that one app you love, and only use it with that. Otherwise it's going to drive you CRAZY. In Bamboo Paper, the two buttons on the side work as an Undo and Eraser. In Adobe Ideas, they both are just shortcuts to the menu. Having to learn the different options for those buttons in every app is going to be a nightmare. So, you kinda want to dedicate its use to one app, or the apps that just use the pressure sensitive aspect of it.
Really easy to use though, just turn on Bluetooth, and then the settings are within the apps themselves.
And it works right there and then. The pressure sensitivity is really good. Being able to undo in Bamboo paper by just tapping the button on the pen is really cool too.
It just came out this month, so there's not a lot of supported apps yet. I know that Noteshelf will be adding it to their supported styluses soon though.

Feels much nicer in the hands than the Jot Pro.
The deal breaker might be that you have to use a battery with it, but I say this as someone in the digital photography scene... Batteries are ALWAYS going to be better, especially rechargeable ones.
The price will also be a problem for some, but whatever.

It was a good $99 spent.