Griffin iTrip FM Transmitter user reviews (black)

Pros I've used it for 3 years now, mostly as I commute to work, a pretty predictable route. I found it works best after trying several frequencies, settling on 97.9 and having a usb power adapter attached ( acts as an antenna.)

Cons Don't leave in your car in sub-freezing temperatures or it transmits badly until warm. Sucks iTouch battery power, better to use power adapter for long trips. Stay away from Needham, which has the major transmitting towers for Boston stations.

Summary Simple to use, I would buy another.
I drive a predictable route and have pretty much optimized my configuration. When I travel to VT and NH I switch to another frequency and that has worked out well. I also use it in the house to play my tunes over the Sangean radio, sounds great.

Most reviews I read on these devices are useless, because they don't specify any details on how they use them - like type of car(if used), type of area driven (country, city, burbs) buildings, geographic area) where they place it in the car, do they use power adapter, how do they route the wire, are there a lot of radio stations in the area, what frequencies they used, near major transmitters, etc. Since there are many major variables, a review that says "it's terrible" is a useless review. You guys need to be more specific.