Below is what we have, and tow with a 2008 F150 FX4. We are at the upper end of our weight limits, but not over. For peace of mind we validated this at a truck scale with the trailer and truck fully loaded and ready to travel. The newer 150s are much more capable in the towing department than their predecessors. We had a '00 150 and the differences between that truck and our current one are night and day.
We added leaf springs to the truck's rear, which raised the back about 2inches, and made a pretty significant difference in our experience. We also had a dealer help us get our towing setup adjusted properly (again, a must) when taking delivery, and again when we had it loaded for travel. A few inches, a few adjustments here and there etc., can make a big difference in your overall towing experience.
We are entering year 4 with this combination and have no issues towing. Hitch is a standard Reece with integrated sway control. We have a manually-adjustable electronic braking system as well (a must so that your not relying solely on the truck's brakes to stop the trailer). Also have an electronic tongue jack on the trailer (also a must unless you want to kill yourself cranking the beast up and down).
Traveling speed is around 60-65mph. No faster.
You want to check the actual length of the trailer to know how "long" the trailer really is. Ours is called a "29 foot", but that is just the box size (the inside living part). The tongue to bumper length (almost 34 feet) is what's listed below.
The key to towing is to be smart -- stay within the posted weight limits (and find out what they are for yourself by weighing your rig at a scale). Take it easy and do a bunch of research on this, and other forums so that you're prepared if you DO feel sway, if a tire blows, etc.. Knowing what to do in advance helps a lot in the confidence department when you're in real-world driving conditions.
2009 Sydney Model 29RLS Specifications
Weight 6990
Carrying Capacity 2610
Hitch 740
Length 33' 6
Width 8'
Height 11' 1"
Fresh Water 50 gal.
Waste Water 40 gal.
Gray Water 40 gal.
LPG 60
Tire Size 225/75R15D
Rim Size 15x6
Best of luck to you and stay safe by staying within your recommended guidelines for your particular setup!