Have had Armadillo for well over 2 years and it seems OK...
Reasonably tough but with all the usual poor American design details (built for profit margin rather than for good quality and ease of use).
The bad bits are that the lock is awkward to use - to lock the thing in place you have to hold the top under tension while twiddling a fiddly key, which also goes the opposite way to what you expect. It's bad if you are Mr. Sausage Fingers. Then, after a while, all the tape strips from underneath fall off and get tangled when the top rolls back. These sealing strips are an attempt to reduce water ingress between the slats - I spend 9 months in Spain & Portugal, and even over winter, the sun causes the adhesive on the strips (like gaffer tape it is) to fail. Very poor materials and design, as you expect from the US.
Having said that, the basic structure is sound and it does the job of covering my 5W hitch when I'm not towing, and I don't worry too much about water getting in as I have tough-coat bed which is definitely excellent.
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