Thanks for all the feedback and info. I haven't purchased one yet as I temporarily moved the trailer to work so I can have lunch in it everyday.
I am getting the old family Silver Streak motorhome in a couple weeks that I'll use for my lunch room, then I'll bring my trailer home. The motorhome will be good, they only made 40 (or 12 depending on the data source), but I'll never take it camping.
After a couple hernia surgeries last year I decided to definitely buy the valet when I get the trailer home. I am going to mount the brackets and remove the valet when not in use. I'll let you know how it works out.
The manufacturer says it will work just fine on my trailer even though I park on road base (gravel and sand mix) and not asphalt.
It will be nice to do a 180 turn with out using my normal, tow-wheel, trailer dolly. The dolly works fine for a push or turn but the 180 degree pivot turn on the road base is a bit of a work out.