almabrds: If he's playing for the first time (as the title says), I would not recommend Restoration Project. Get killap's unofficial patch, instead.
thelovebat: The Restoration Project is pretty essential, some questlines will be incomplete without it especially ones in The Den and with Sulik. I see no reason why a first time player shouldn't use it. I think we all enjoy having extra content in our games and it'll make their first experience with Fallout 2 that much better.
If everyone enjoyed extra stuff, there would be no reason to have killap's patch.
It's a matter of preference. Some guys like playing vanilla, first. And then going crazy with mods in the second playthrough.
Unless you're planning to play the game only once, I wouldn't recommend RP.