In my opinion, and I mean this as a honest assessment, not necessary criticism, I am pretty sure they already know their shortcomings. They are trying to win sales in a highly competitive market and have a good strategy. To make their price point they build these things as fast as they can. I am sure they have QC to an extent but not at the sacrifice of production.
I guess the bottom line is we all want a luxurious RV with all the whistle's and bell's but still want it for under 60k. I think Heartland's position is they believe they are offering an attractive, contemporary RV at the lowest price possible. If your rig would have cost $5000 more than a competitors model sitting right next to it on the dealers lot and the average consumer can't SEE the difference, they would lose sales.
I think at the end of the day it is all about looks and price which equals sales. Quality control falls behind the first three. Not that they are building junk, I just think there is a fine line as to what you are going to get for the price you pay.
Based on my ownership experience, I believe they are doing a pretty good job. But there is always room for improvement
But if filling out a survey post card gives you a sense of satisfaction, I bet the marketing department would be all for it.