I do not recommend them. I requested a battery change for my cayenne. They said they have to send a specialist. The guy was 3-4 hours late than the initial scheduled appointment. They claimed (through text) that this is because they had to wait for their specialist. Finally the guy arrives. He panicked not knowing where the battery was located in the car. He said he was not a specialist and he just got the call for this service. He made a phone call, someone else told him what to do, then my car’s alarm went off, he panicked and started behaving agitated. I tried to talk to him, but he was acting weird, like the way I have seen during my clinical rotations in psych department. So, I tried to avoid him and walked back inside, he was pacing back and forth cross the street (we have all this on security camera). Finally I got a hold of my own shop, and they told me what to do, so I asked this 1-800 battery guy to leave. Later, I called the customer service to get refunds or compensation for incomplete service, but they said they need to have a manager to do that. They claimed they never said they will send specialist, but we have this evidence on the text-chat from their number. Overall, I give them (negative) -20 stars! 1. Sending unprofessional people. 2. Not having a set staff or reliable people. 3. Using random shops to send out to women (this could be very dangerous specially if you are in the middle of nowhere). 4. No manager ever called back. They seem to not have one. 5. I tried to complain on BBB. The BBB said this company is not BBB accredited. So, I should not use them. Therefore, I recommend you to not use their services, and walk away while you can.