Like any you do in life you take precaution, be it mechanic or garage. All I can advice is look at what vinyl wrap company business, check out the premises if its clean as its important so the viynl sticks properly. If not then the viynl will fail because one it wasn't a clean environment , prep was not done properly or the person applying vinyl has no formal training.
Ask for references of check a couple of cars they have done and speak to the customer so you can see and get feedback. Also ask how long it takes to fully wrap a car. If they said 1 day then they are taking short cuts. Prep work should take at least a day,wash,dry,ipa for removing dirt particals and maybe clay bar the body work to make sure all contaminates is removed and left overnight to dry. Depending on the size of the company 1 or 2 days to apply the viynl.
Any company who does a good job will have no problem giving you references if not then walk away like in any situation.
I wrap my own car,took a course on viynl wrap. I had no problems with the viynl failing or peeling off as long as it is sealed properly on the edges of the panel that is work on.
I had it on for about 15k miles for a 1.5 years and had no problem. It was well stuck.
Here is the thread for my viynl wrap http://www.alfaowner.com/Forum/motor...ld-thread.html
Here is when I removed it back to stock colour http://www.alfaowner.com/Forum/motor...ck-colour.html
The only thing I would be concern would be any signs of clear coat peeling off from the body work. If that's the case then chances are when the time comes to unwrapped it,any loose top coat will lift. But if the bodywork id fine then I won't worry about it.
At the end of the day,its your choice but if you want something temporary and put it back to stock in a few years time then this is a good option. It can also act as a barrier for stone chips.