had bluefin on my ed30 for nearly 3 years, its fantastic, super quick, super smooth. I've had no problems with them either, always found them to have very good customer service, and no, i dont have anything to do with them, just saying as i find them. i dont doubt that revo are also very good, dont really see the need to slag them off because i have a different map, its just that i find bluefin more to my liking, its so easy to revert back to standard for a visit to the stealers, and it's supposed to reset the flash counter so it cant be seen how many times its been flashed. not sure how true that one is though. pay your price and make your choice.