Custom Golf Club Fitting at Golfsmith?

I'm looking at getting a new set of irons and was thinking of getting the custom fitted. Golfsmith has a decent deal going right now on trade-in when you purchase a set of clubs over $250 (which new irons will easily cost me). So I figured I would get the custom fitting done at Golfsmith. Has anyone had any experience with the fittings at Golfsmith? Would you recommend them for custom fittings?