We have been traveling for 2 years in our 2604WS and love it. Good couple's trailer. We haven't had a single issue with this trailer that was a result of Forest River's build quality.
I second the recommendation to get factory installed fans in the vents as well as vent covers. We opted for one in the living area in addition to the bathroom vent fan (which is standard).
advise you to select the dinette option. This will give you a drawer at floor level. We use it to hold heavy pantry items. It also adds a pass-through storage compartment in the forward seat, accessed by a door inside and out. Both areas are accessed by lifting up the seat cushions, too.
Because the bath is amidships and extends the width of the trailer, you have no wasted space that a hallway would take up. The linen storage is more than ample.
We put hanging shelves in the bedside wardrobe for my folding duds. My hanging stuff is in my half of the wardrobe. You'll love the blanket storage under the bed and the three drawers under that my wife uses for her folding clothes.
This trailer lives large for its relative short length. We haven't seen another that has made us regret our decision.
To see pics of the 2604WS in action and the mods we have made go here: Rocky Mods - Year 1 by awellis3 | Photobucket