The difference is thinking it is likely to be a false alarm, as apposed to its likely not to be a false alarm would make a big difference to the enjoyment of my two weeks in the sun. I have seen far too many burglaries, but that is probably why I have Police response and three keyholders all quite close, one is a taxi driver so he will get here before the Police .
I dont think there is a limit to how long the Police have to respond, they seem to be pretty quick down this way, normally on site within 30 mins, we had one with 7 mins. Confirmed intruder signals less false alarms, and they are more likely to be the real thing.