...honestly, I'm on Mesa RJ about 4-6 times a month and it's occasionally nice to hear something other than the same old "your seat cushion can be used as a flotation device" line that I've been able to recite since I was 12.
At this point, they ought to just say "If you haven't been on a plane before, press your call button and a flight attendant will come and tell you all about it..." @:-)
My worst Mesa FA was a young woman who didn't have an adequate command of the English language. She was completely unintelligible and was a safety hazard.