There is a lot of debate in the EP community over whether Catheter Ablation for AFib should be a "First Line" treatment. From all the research I have done - and based on this experience: (Google "Adventures in Cardiology"), I would suggest that it can be done safely and effectively. But you must make sure that the doctor you expect to do the procedure is actually the one who will do the procedure. Know what questions to ask: How many of these procedures has the EP performed? Will there be trainees involved?
It pays to be assertive and fully informed.