I have an equalizer I tow a 28' Haulmark 10K box with. The only problem I had was the brackets for the trailer frame. I have an 8" frame and the brackets supplied were for a 6" frame. After I got that mess sorted out, I was able to mount the hitch and set it up (took about 2 hours of fiddling the first time). It tows very well, no sway, and does a fine job of leveling the truck. Unfortunately, it is the only weight distributing hitch I have towed with so I cannot make a comparison with any other W/D hitch. I did hear from several RV dealers, that if you can afford the $3-4K for a Hensley, you will never be disappointed. My 12K hitch was around $650.
One thing I forgot to mention; Those bars are pretty long, so make sure you have the clearance from the hitch to the front of your trailer. I had to cut out some of the rock guard on my trailer to clear the bars on turns because they would push against the diamond plate. Some of the chain suspended W/D hitches have significantly shorter bars on them and provide much more clearance from the hitch.