donn0128, we ordered the 320.
Unfortunately there is a lemon built everyday somewhere & RV's seem to have more than their share.
As previously stated, I have followed these for almost 2 years on several forums & reviews. It seems the average Columbus has the typical minor issues on delivery but very few issues after that. I hold my breath the first few trips with every new RV. I just hope I'm not the lucky one to get the lemon.
Thanks everyone for the feedback.