LO LIM isn't a term that I've ever heard used for the 717, but the same principle is built into the system logic. If you're in IDLE CLAMP or FMS SPEED and above the selected speed, the autothrottles pull back to just a bit above idle. You have to pull them back to idle manually if you want to get rid of that tiny bit of remaining thrust. If you do, the servos don't kick back in until it's time to bring the power up upon reaching the set speed.
As far as autothrottle stability, the ATs are incredibly stable on all but the most gusty days. I'll usually still leave them on to the ground, even when it's very gusty, and just override them when needed, but I have flown with a few guys who turn them off when it gets windy and they have to override. But generally, our company culture is to use the automation that is provided. It's both safer, and according to Boeing, more fuel efficient.
P.S. Boris, I think you need to look into joining a Luddite colony.