I owned a Starlite trailer. I bought it new last spring. I pulled it over 5000 miles. Had absolutely no trouble with it. The only reason I do not have it now is the fact that 18 cu. ft. was not big enough for the camping gear I like to take. The trailer does have to be loaded correctly pull good.
I cannot make any comparisons to the Dart as I have not seen one. I just thought I would let you know about my experiences with one.
I do know if it were big enough I would have had it painted to match my 1800 and kept it.