"This chip will give your machine a boost in power and extra CPU instructions over the standard 68000 part."
Yah, it's true.. you do get a few extra instructions but hardly anything compared to a 020/030 CPU.
Yah, a mighty 5-10% boost in power.. like that's anything compared to a real turbo board.
I personaly wouldn't pay more than just a few $ for a 68010, I'd rather save the $ for a real accelrator that can give me a HD controller, Memory expansion and more.