We purchased ours towards the end of last season and only got to take it out a couple times before the season ended, but we love it. We moved up from a hybrid TT to get a full hard side with with a slide for more interior space (room for rainy days) and the bunks for kids to be able to invite friends.
The outside kitchen is great to have and works very well. The size of the bathroom shower was a nice improvement too. I think we have plenty of storage for daily use items (food, cleaning supplies, pots/pans, etc) and enough front cab, under bed, and under dinette storage for the larger items. Again this is in comparison to our smaller hybrid, but we really haven't needed more with the 290QB. The only thing that would be nice is a outside rear storage area for firewood (but I can throw that I truck bed).
We got ours for 36% under MSRP from a local dealer with some haggling so don't overpay. Good luck & Happy Camping!
'14 Sunset Trail 290QB
Towed by a '15 Ram 2500 6.4 Hemi 4x4 CC
Equalizer 1200/12K (just because I still have it)