I looked at a Core Ice 19’er. I thought the structure was solid.
I didn’t like the interior stuff. The windows didn’t slide open unless you used two hands and grunted a little, the back table when set up was wobbly, I could see daylight in the door frame, the cook stove had permanent grates on it (how to clean), the cabinets were rather thin pvc sheet board. I expected a premium product because they want a premium price. This was a demo unit, and was used by the dealer. One of them told me it swayed in the high winds when being towed. I appreciated his honesty.
I bought a 21′ Ridgeline tandem axle. Towed it 4 hours home in a fairly high wind. Started at 60mph, testing the air. Then 65, 70, and finally was comfortable towing at 75, even with the high wind. Lots of factors to look at when spending a load of money on these fish houses.