Does anyone have a G-tech Pro

Does anyone have a G-tech Pro

Hey i was wondering if anyone had a G-tech pro and if so how accurate is it? is it user friendly? do you have to calibrate it? the Pros and cons of this product?
I'm asking this because i see them for sale on ebay for like $30 bucks when i remember they used to be $150. so it would be a great time to pick one up

http://cgi.ebay.com/ebaymotors/ws/e...bayphotohosting

Thanks

yes i have one, the cheaper one. its good if you would like to do 0-60 and 1/4 mile by yourself. it also does 60-0 braking, g forces and top horsepower. the thing will take alittle getting used to but a quick read through the instructions should explain everything good. the testing works pretty well except its very touchy to setup. some of the tests require you to enter things such as car weight which takes awhile to set and not to mention the thing generates alot of errors. it goes on your windshield by suction cup and HAS to be centered and setup perfectly for it to work. if you plan to use it on the street, i suggest you find somewhere that you can come to a complete stop and sit possibly for a good amount of time to set it up or its not going to work out.

i have two of them...it's the G-Tech Competition Pro...i bought them at the auto show a few years back when they first came out...there's a new one out now, i think it's silver...i didn't really look into it. but ne ways, i got mines for $250 each and i like it. seems kinda accurate to me..maybe off by tiny numbers, but still works for me. it took me maybe 30 minutes to set the whole thing up. and u download some upgrade softwares online on their website...

i want to get an SS