Just installed my power commander 6 yesterday with the tune from dynojet, and so far i love it. Smoothed out the throttle at low speed, not nearly as much off/on throttle. In addition, the mid range has much more power available and vtec transition has been smoothed out very nicely. In terms of gas mileage i wouldn't recommend this tune for touring purposes, the stock tune is just fine for that, but for street fun and commuting duty it works very nicely, gas mileage at 70 in 6th was about 56-8, starts dropping off after that down to 40ish at 80. Anyways I found it very much worth the money and would recommend this to other vfr owners.