So I had a chance to test this thing out during my solid day of practice at my local asphalt track over the weekend. Overall my results and experience were great, and it has already become an invaluable tool for my tuning. Here's my initial thoughts after a good day's worth of use:

The Good:

• Getting instant lap times in your ears is priceless for finding new lines that are surpringly fast.

• I was able to compare it to our track's lap timer system and a MyLaps transponder; they were effectively dead on.

• I used rechargeable AAA batteries, and was impressed to see it last all day long sitting by the track. I rarely turned it off between my runs.

• Direct sunlight didn't seem to impact it.

• Never had an issue with the bluetooth connecting as long as I had a good clear sight of the box from the driver's stand.

• I'm sure this varies greatly on track layout, but I had no issue with getting any false positive hits.

The Slightly Unfortunate:

• Loses connection if you turn your screen off on your iPhone, so I found myself eating a lot of battery.
• I know it has been mentioned before, and it could be getting fixed already, but the voice is way too fast.
• I'm an iPhone guy, so it doesn't impact me, but I'm sure an Android app would push a lot more of these.

I've been wanting a personal lap timer for a while, and really glad I waited for this to come along, its exactly what I wanted and works great.