The fact that they are in Australia is a negative. The turn times on the tunes can be a problem. My first Diablo tuner was bad. Because of the time difference it took longer than expected to get my first tune installed. Everything went to Hell on a Thursday and wasn't fixed until Monday. Luckily, I was on a trip and the dealer had a bay tied up, I didn't miss any additional jeep time. Once you finially get the tune installed you will be amazed at the difference. I did get a subsequent tune within 12 hours after I changed my exhaust. That was mid week though.