I will say this. Yes, it would probably pull you out if you were stuck. However, with that said, the PT400 series has tiny little batteries. And tiny little charging systems. These things can literally pull a hundred amps with a load. It'll kill your battery and charging system with any frequent use. Also, it has a 5% duty cycle. The manual says you can operate it for 45 seconds. Then it has to sit for 14 minutes and 15 seconds before you can use it again.
So, what are your plans for it? Just to get unstuck should it ever occur? Or pulling firewood on a regular basis?