Probably the best thing a potential purchaser of PPF can do is visually inspect other cars that are being wrapped in the shop that are the same model as your car. The shop we used has one, maybe two guys, with the most training and experience in PPF doing the PPF work. Other guys there assist with the cleaning of the car etc. With PPF you really want someone who has been doing this for some time and does great work. It's not something to be rushed either. And as mentioned bubbles or sometimes a wrinkle can form and is pretty normal and can be corrected when brought in for your check.
We had a full body wrap done on our Model 3 and I'd say the area where the bumper meets the body panels are probably the areas where I've noticed you'll have a visible seam gap (did not want to have the bumpers removed for a full wrap there). Another tough area will be front bumper recessed areas. Pretty much think all the other areas of the car were able to be wrapped fully but I'd have to check my car to say for sure. With clear PPF and a white car just really hard to notice unless really close to the body. While protection of the paint from flying road stones, door dings, shopping carts and minor car scrapes is the main goal in buying PPF, having it look more or less invisible esthetically surely is a secondary goal. I personally would not be happy to see edging like I do on the door panels etc where clearly there is panel separation where film could have been wrapped inward.
Thanks for the detailed information, this helps me figure out what to bring up with the shop.
Would it be possible to check how the fenders and rear quarter panel edges are wrapped?