What do you folks think of aluminum sided trailers?

I have had both, and would not hesitate to purchase aluminum again. The last aluminum sided trailer was not hard to clean, I used good car wash soap and washed it 3-4 times per year, with an annual hand wax. It shined like new the entire time I owned it. I found that after pulling the lights and re-sealing all of them with plumbers putty I never had another issue with water coming in around a light.