I have no experiences with tilt trailers, but after the single axle I went to double axles and it was a fantastic upgrade. It runs so smooth behind me, no waging, just stable and safe.
Beeing a bit tired of handling ramps each (un) loading process I wanted a tilt trailer, having had a few jobs now, where I needed ramps to reach the stump, I suddenly was happy with them. No ramps, no money.
Some stumps where instance jobs from neighbours, with no preparation time.
So I decided that the only reasonable upgrade would be a nice van. With ramps, a dry and save place for tools and grinder and no fooling around with tacking a 30' vehicle combo in tight places.
Regards
Marne