We have had both. Towing with 5er is SO much nicer. It is very stable under cross winds and don't even feel those semi's passing us anymore. Feel very safe driving the 35 foot 5er compared to our old 27 foot TT (same truck for both trailers: 2005 Ford F250 PSD). Also, hitching up is much quicker with 5er. Backing into tight spots is easier with 5er. And you don't totally lose the bed of the truck, still room for stuff in front of the hitch and firewood behind it.