I've been using mine for a few months now. I find it only needs a tiny drop of blood, a lot less than my one touch. It's also nice that it gives you a few seconds to add more if you didn't get enough the first time.
The carb counting part is OK but can't be set to half units, which I find pain. I often end up changing it's suggestion up or down by 1/2 a unit here and there. It is convenient as a guide though, and to have it logged (assuming of course I don't change the dose).
I'm not that keen on the software for reading the results off it. I'd like to be able to see a graph over a week or so. It also seems to end up over quite a few pages if you want to print it off to show anyone.