A friend of mine has had one on his Tacoma for about 2 years. The only problem he had was on of the lock latches broke off and it was not covered under warranty. I think it cost about $30 to replace, but the cover has held up well.

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2008 SR5 Dbl Cab, Sky Met. Silver 2WD Tundra
MODS: BHLM, Corsa Exhaust, Grillcraft grill, shortie ant, Pioneer Avic-z110bt nav/DVD, Volant intake, LineX, 22" Boss 335 wheels, Kenwood amps, Memphis 12" sub custom enclosure, extang bed cover and more to come....