Floor plan, Tow Vehicle and Finances are the three legs of the stool and RV owner sits on. If your RV fits all three, chances are you chose correctly.
Usually a smaller unit compromises the floor plan, a bigger unit challenges the TV; all sizes can impact the finances.
If you own it, you have already taken the depreciation hit so you may as well use the unit a bit; then you will have a better feel for what is “big enough”.
Most dealers will tell you that the average RV owner gets two footitis and trade up in size.
Good luck and keep us posted.