I can comment that there's been times when I've been on flight following and switching to a new ATC controller causes problems. I've been asked to drop to under

I can comment that there's been times when I've been on flight following and switching to a new ATC controller causes problems. I've been asked to drop to under class Bravo airspace midway through a transit. I've been ping-ponged to different people because the new guy has too much workload. I've also had to play the radio hunt game when the given frequency to report to was currently not being used.