Well we ordered the 320RS which weight wise is about the same as the 325RL. Camping World found a couple issues with it when it came in and worked with FR to fix. FR takes a bit of time to get parts out but CW did a great job setting it all up.
We tow it with an F-350 6.7 PowerStroke SRW. Pulls it no problems at all.
As for the 325RL that was on our radar because of the outside kitchen but we like the rolling island in the 320RS.
2015 F-350 Platinum 6.7 PowerStroke
2017 Columbus 320RS
Andersen Ultimate Aluminum hitch
16,800 miles of RV'ing since May 2014