I'd agree with that.
Generally the best way to use Facebook ads is (and this is very simplified):
1) Have some kind of offer/freebie someone will get when they like your page
2) Use ads to drive traffic to that page to build up your fan base
3) Market to them on long term basis - just by having a fun page
When this free ads thing is announced, it would be good to give it a go for anyone who hasn't before.
Also, would recommend checking out Facebook's own guide here:
Not sure if the free ad credits are still available when you get that guide, but worth a go.