I haven't used it, but I don't think the specs are that appealing. The stylus is for resistive touch screens, not capacitive, so you can't use it on a smartphone or tablet. The eraser is a bit small, and the ink cart for that is the very thin Fisher refill which won't last very long if you're writing a lot.
That thing came out quite some years ago, around the time when those PDAs were pretty popular, which is probably the user they were geared toward.
I write more with a pen than pencil, so I personally would lean towards a good comfy pen with a good refill that writes a line that makes me comfortable. Fortunately, the Fisher refill is one I love, so that's no problem. I usually use a Zebra mechanical pencil, the short one that looks like a wooden pencil. They work for me because for some classes and teacher certification exams, they don't allow mechanical pencils (I suppose because people hide answers in them), but those look like them and I've never had a problem using them. I hate wooden pencils, since they write well for about 5 seconds and then get super blunt.
Hey Kirb. I'm still unpacking, but I'm about to go to bed.