The Fastaway system is a WDH with integrated say control. It distributes some trailer tongue weight off the rear axle and onto the front axle of the tow vehicle as well as reduced sway control. You have both benefits or neither. Sway is less likey to be a probably at lower speeds, say <50mph than highway/65mph. Likewise, the reduced weight on the steering wheels will have less effect at lower speeds. However, your receiver likely has a lower weight limits without a WDH, so check that before perusing.
Generally, I'd say stick with it until you know very well how a WDH works and your exact weights and ratings.
