My old Rowenta Professional iron has stopped steaming and started leaking. I am considering stepping up to a Rowenta steam generator (DG-980) or a lower-end gravity-feed iron for working with heavier drapery and upholstery fabrics. I need something with good steam. I can't decide between the steam generator and gravity feed. Both would provide a good amount of steam, but which will be more durable in the long run? I want something that can be left on while sewing, but then again I also need something for "casual" ironing. I'm not picturing a gravity-feed as suitable for this but maybe I am wrong? I might need a secondary cheap iron. What are the pros and cons of these two systems? Is one a better all-around ironing set-up?