The street checker can’t tell if the building you are in is going to interfere with the signal (it says the gym I go to rates 5 bars but actually it’s a steel-frame building so you get no reception inside).

And even if it was perfectly accurate, are you honestly going to change your plans to accomadate your phone service? “Sorry guys, can’t come to that pub, my mobile service only gets 2 bars in there”.

Nice, more like Naff.