Hi sd norm,
Welcome to the Heartland Owners Forum and hopefully to the family of owners. We have a great bunch of people here with lots of information and all willing to share their knowledge if needed.
The 06 were an early model and many changes have been made. But if this unit is in good shape and fits your needs go for it. Don't know of any thing that was considered a defect or not using quality material in construction.
Let us know if we can help with any questions.
Enjoy the forum.
Jim M