I'm a little late responding, but better late than never!
We did purchase the used RV, and are now excited to be a 2015 Thor Citation 24ST owner! Ready to hit the road!
Had a bit of confusion regarding the listed year: the dealer had it as 2017, but it actually was a 2015. Of course that dropped the price a lot, so we got it just below NADA low book. (I hope that's a decent price) Low miles.
My husband spent 6 hours at dealer going through everything that was suggested on my question about what to look for buying used. (very helpful!)
Interior and exterior in great shape, and everything seemed to work properly. Did not see any signs of leaks, water damage, etc.. A handful of small fix-its the dealer took care of. They gave us a 3 month warranty and 1 year roadside assistance. Found maintenance records through CarFax.
They had a driving sensor (?) replaced, which seems to be a common problem with the Sprinter Van chassis.
Now we have a handful of things we'd like to customize/change, so will be posting questions soon!
Thanks again for the help, look forward to joining this fun "campsite" and maybe sharing some of our own ideas down the road