LOL @ crap-awareness
bgi, the scanner is decent I get about 4Hz refresh rate - this means it can send about 4 data numbers in one second. Honestly, the only thing it lacks is reading the freeze-frame data. And software, but that's why we have the internet.
You can read codes, clear CELs, see real-time data as MAF, LTFT, STFT, throttle pos, timing advance(?), rpm, speed, both O2 sensor instantenous voltages, intake air temperature and in fact the device itself supports any PIDs if driven properly by software.
It needs a driver to emulate a serial bus over USB which works fine on vista. Being a geek, I'm using it with a modified version of a freeware program called scantool which can log to a file which can be imported into excel to create graphs in an attempt to diagnoise my extreme fuel consumption problems (~16MPG last check). No luck so far but.. meh.
Honestly I think it's a steal, it does what other 200+ handheld scanners do - that is - if you have a portable comp.
It took about 3 weeks to arrive. If you choose the low cost + high shipping ebay combination, you rule out customs charges & delays so that's a plus. Sorry, I notice you're from US so scratch that.
^^ whas that a long off-topic post or what? SRY