Hey Milsy,
I've had a few and just currently doing up a ripper of a Star Wars.
The main things to look out for a the usual burnt G.I plugs and the biggest problem is the fuse clips mounted on the PCB. More often than not they need replacing but an easy job.
One up and running I found them to be as good as any other. Parts wise, plastics etc are generally easier to get and our local sponsors carry most of the consumable parts for them otherwise Marco's carries a heap more.
The only thing is the D.E's screen printed directly to the cabinets..Cab art is not available.
Best of luck.
PS...LAH best game ever!!!