I have a GIC camper and love it. The canvas is 15oz ripstop, cant see how you can get better than that...... The trailers are oz made and for the price, it is unbeatable!!
The only negatives are the only access is through the trailer door or the two panels under the bed. Saying that, it is now an option available to fit gas struts to lift the whole tent part for better access whilst packing with the tent stowed. Also the awning framing takes a bit getting used to for setup, but once sussed is not too bad. Oh and the price was awesome!! $4400!!! with full annex!
I highly recommend the GIC trailer, I bought the off road model, which is the mid range