I think many people get into bumper pulls not so much because of their needs , but more because of the fear of the unknown.
Goosenecks are so much better, easier to tow, easier to turn. More room for the same weight.
Bumper pulls are more versatile and can be pulled with SUV's and Vans. They are also available pretty lightweight.
What I looked for in a trailer was Aluminum, no rust less weight.
2 horse, slant load.(I only got one)
Goose neck with sleeping area, Not living qtrs just a carpeted tack room, matress goes on the gooseneck, portable AC gets hose hung out the window, propane heater for the winter. I cook out side on a table grill, under an awning. I have a small camp 1.8k generator that runs the george foreman grill, and a coffee maker,
NO bend over tack storage. My last bumper pull had under manger tack storage with side doors. I hated it with a passion. Was murder on my back. Have to bend over reach in pick up this heavy saddle and pull it out.
The slant load gives me that rear corner tack area with my saddle 6 foot off the ground, no bending and stretching. In the back of that corner I just ordered the triangle 6 foot high water tank. Empty weight on my trailer is 3400lbs. I figure 1000 lbs of stuff and 1000lbs of horse, and even on trips I can add another 1000 lbs and be well under my trucks 11k rating.