It isn't at all clear.
He hasn't provided anything other a couple really poor pics. Who knows what all the "real" issues are, playfield wear, etc.
He's mentioned:
"could use some TLC"
"It has a few years of wear and tear that, unfortunately where I was storing the machine, went unaddressed"
"the little error dot appears on the dot matrix"
"one of the mini-playfield gray 'mushroom" target is broken"
He's mentioned "One pre-existing (prior to my ownership) modification is the top of the mini-playfield as seen in the picture below"
--> It looks like the time expander's entire top is missing and replaced with smoked plexi
I suspect it's a full-on beater, but without pics, hard to tell if it is just a partial beater.
I might have been interested, but I'm definitely not participating in someones craigslist auction.
Edit:
He has also mentioned he does not have "expertise or funds to give this machine the TLC it needs", which is also scary.
Might have bad playfield wear, bad acid damage, etc, etc...way too much of a gamble, especially with no pics/expertise.