Rochester Rebuild?

[Anchorism]

So the 454 that I'm currently rebuilding is getting close to being complete. The last part that I need to decide what to do with is the carburetor. It had the original Rochester Q-jet. What I am wondering is how good are the original Q-jets? My cousin is saying that they aren't that great and I should look for something better. The problem with that is im on a tight budget. I think a $35 rebuild kit is worth giving it a shot. He stated that the throttle shaft tends to wear out allowing a vacuum leak. So is it worth attempting the rebuild or should I start searching for something different?