We have a 2018 Pioneer QB300 a little over a year old. Several pieces of trim have fallen off inside, Cabinet doors are sagging and rub together at the top. Those items I fixed myself. The slide out leaks when closed. On the slide out, the outside seal on top is high on each end and low in the middle. The seal fills with water then drips on top of the slide until it drains. The water then runs down the ends of the slide onto the floor inside. All this happened right after the one year warranty ran out. Quality of the interior is not very good. It looks good when new but doesn't take long to deteriorate. Already looking to purchase another RV but NOT a Heartland.