Well, I think it is, but then, I'm rather biased.
It's a short game, but considering you can find it for around $10 - $15 these days, that's not such a big deal.
It's one of the old LucasArts games, and by Tim Schafer to boot, which is always a good combination... IMHO, it's one of the better LucasArts adventures. Be sure to check out ScummVM
to get it running if you do decide to buy it, though.