I have a 2013 Northstar Igloo 9.5 and I am quite happy with the product. I chose it for the most part because I am six feet eight inches tall and so is the ceiling on the Igloo 9.5. Most other campers run 6'4" or 6'6" and I didn't want to duck.
In two years we have driven with it almost 30k miles and slept in it around 150 nights.
Being a big guy I find the dinette seat cushions too soft. I wish I had ordered the double sink, I regret busting off two TV antennas going under too low branches, and I added a two inch mattress topper to the original mattress. Big as I ma I wish the bathroom was a little bigger in every direction but it works. I ordered mine with an oven and have never used it.
I love the convenience of the cassette toilet.
I have had no leaks, no squeaks, no problems with the build quality at all and it has been treated pretty rough.
If I was doing it all over again I would take another Igloo with just a few changes in how it was ordered.