You don't say how old the F-Pace is that you bought, but if those were the only issues I'd had with mine I would have been a happy bunny. However, I understand your frustration. I think cars have become so complex these days that the days of a competent mechanic being able to look and listen under the bonnet to diagnose a problem have long faded into history.
You don't say what the issue with the phone connection turned out to be, but given your son-in-law fixed it, it sounds like a configuration issue rather than a problem with the car, although the software upgrade that the dealer did may have enabled a solution.
I remember seeing other posts regarding the air conditioning - condensers and air recycling valves spring to mind, but again these may not apply to your car depending on age. Search the Forum to see what issues others have had. Hopefully the dealer will be able to sort it for you but a quick search before you go might give you a bit more insight into what the issue could be.