I see they are using Porter-cable cordless. on the show..There are many good routers out there..its really a hard question to answer..I have a Porter-Cable 694 and 690 Bosch 1617 and freud.They are all different but all do a good job.
Will he be using it in a table. handheld or both?
If he uses it both, then look for a Combo pack..That way he can leave the base in the table and slide the motor out, and insert it into the plunge base and use it handheld..Very easy and a fast change over.
You can also buy bases that have extended Micro adjusters, that make it easier to adjust the router while in the table.
Hope this helps..