Not out of the ordinary. It fits with what we experienced with WPE as well. My take: if more people aren't complaining, it's because they're not monitoring their sites well.
Had to move our highest traffic site back to GoDaddy (which makes me cringe, don't get me wrong). Doing the same with our other two sites.
That said, I believe in what you guys are doing, think there's space in the market for someone like WPEngine ... it's just that, in my experience, you guys are executing poorly and dropping the ball quite often.