I started out with a Kendon stand up trailer and it was a quality-built rig. After several years of ownership, sold it for about what I paid for it.
Now I have a Wells Cargo 5 x 8 enclosed with V front that adds about 2 additional feet of interior space.
Rear ramp door and side entry door and spare tire/wheel mounted inside up front in the V.
When loaded with only one bike, I can sleep inside alongside the bike comfortably for long distance travel or track days.
It also has sidewall vents for flow-through ventilation and inside lighting which comes in handy.
It's nice to have the bikes and gear out of the weather and securely away from prying eyes along the way.
I bought it partly because it fits inside a 7' high garage door so I could always keep it out of the sun/weather.
Use 2 Baxley sport chocks mounted to the floor with several different configurations for single or double bikes.
Have not had two Teneres inside, but have had two naked GoldWing 1000's inside at the same time. One facing forward and the other facing backward, both in chocks. Same setup with DL1000 and RC51. It's close but it works.
It tows easily and handles great behind my Silverado.
They are highest quality made in the USA and a good long-term investment (except for the Goodyear tires, which are made in China! ::025: