Yeah, I read that but experienced the exact opposite and that was one of the only negative reviews. There's always one
. IMHO, all work was carried out to a high standard and with no issues at all. I wouldn't recommend them otherwise. Most remaps are just an "off-the-shelf" flash, but this guy actually maps it on an individual basis for your car and your requirements. I guess with turbo diesels they are much of a muchness to be honest. Any good map will give you good gains. I can't vouch for anyone else's maps though only to say I'm very pleased with mine and it's transformed the car.