Chase Freedom just sent me an offer with $100 cashback on first purchase?

That is hard to pass up. Has anybody done this and is there a catch? The card I use now gives me 1.4% back on all purchases with no caps, but I pay it off every month.

Look for APR and yearly fees. Do you get free APR for certain amount of time? A good APR would be somewhere around 14%. If there's a yearly fee, pass on it.