I have never owned an RT-622, but purchased a Freedom Trailer to compliment my new 2015 RT-S.
The Freedom Trailer will serve the purpose, but it has nowhere near the refinement of the RT-622. The 622 main shell is one-piece. The Freedom Trailer is assembled over an inner skeleton/frame with body panels. You can see the body panels clearly (a bit unsightly) when you open the lid. Also, the fender cuts are true, but have a very evident appearance of being 'cut out'. I am installing edge guard to mitigate this. Finally, while the MSRP of the Freedom Trailer is $1K less than the entry point on the RT-622 (even the pre 2014 622s are going for retail), in order to bring the Freedom Trailer its highest standard, you are still going to spend almost $1K to purchase chrome trim for tail/lid and sides, a knife stand, inner liner, and storage cover. Had one interesting anomaly ... the keys that came with my FT don't work in its lock, so I'll have the dealer take care of that. Looks like a build/QC issue where they didn't set the key cylinder to the keys themselves. To access the lock cylinder on the FT, one has to remove the entire rear panel of the trailer.
The FT hooks up easy and tows great, just like the 622.
That is my story :sour: