I took the advice of everyone on this site. I've owned HD's for many years and switched to a HD FreeWheeler trike in 2015. The trike was alright, but didn't ride very smooth. The wife and I couldn't ride very long, by myself I could ride for an half a hour to hour before having to take a break.
Then we were out and did a CanAm test ride, we couldn't believe the difference in the two rides. We also rode the Tri-Glide from HD, ended up liking the Spyder better between the two. Was hard letting go of that HD sound.
I think until HD improves their rear suspension on the TRi that they will never have the ride of the Sypder, but then again two different types of trikes.
Just my 2 cents.
I went with the Spyder RT Limited SE6 and we love the ride. It handles like it's on rails after you get use to the feel and difference, again just my 2 cents.
You may want to check out SpyderLovers forum for additional information.
Good luck with your new ride...