I had PPF done from haval exp ISD (they assured that they would handle any issues that arises out of applying the PPF; those in the haval Whatsapp group would know of several incl. those of paint and electrical). I had my own interior PPF (ali express) which i handed over to them. I also got all exterior piano black stuff PPF'd. Total cost was 250,000. It was some chinese brand PPF. Since this is all they had at that time (Jan 24), I settled for it. It did not have a top ceramic coat (more on this a little later).
End result were very good, better than i expected. I had a couple of air bubble which went away in a couple of months (it was cold, so when the sun finally came up, the bubbles went away). To be honest it looked better than what protec in ISD was doing, but it wouldnt be fair since it wasnt an apple to apple comparison (partially covered HS vs fully covered H6 HEV). Protec was asking for 425,000 for Hexis (French).
I have since sold the H6 (looking towards the PHEV once it hits the market) and in the meantime bought a GLX Swift. Sprightly little car. Very nice to drive, excellent road grip. The reason for the swift was a) learn a little bit of sound deadening b) learn some basic electrical modding. Both of those I did. Gettting back to the point, the Swift got the PPF treatment from carbogarphics. This one was 225,000 for full exterior cover. This one has a top ceramic coating making washing the car much easier. As for the final product, hard to say; there are two large bubbles that dont want to go away (they can be popped but i dont want a puncture in the film; bubbles i can live with). The legendary Suzuki paint quality means that teeny spots of paint might actually come off the surface and get stuck to the film! But that is on suzuki, not Carbogarphics.
Is it worth it. Yes, in addition to protection against minor dinks, it protects against light associated paint damage and i can leave the car unwashed for a couple of weeks. In addition the pianoblack stuff scratches easy and the PPF does a great job of protecting it.
I would suggest getting on the haval Whatsapp group (which i have now left since no haval), and ask for advice regarding your specific dealership if they offer PPF and if anyone has it done from them.
Hope this helps.