I have one of them in my truck (bought it in July this year). If I get 2 years, I will be happy.
AutoZone Gold lasted me 4 years (it was a pro-rated replacement, the other one lasted 2 years, but sat for 1 year).
It was $50 with 12 month warranty. The Maxx was $99 with 5 year (3 year replace, 2 year pro-rata). I figure 2 years will be the break even point.
I am doing monthly overnight charges (2 amp setting) and making sure my fluid stays filled. Figure that will get me at least 2 years, and maybe more.
I probably will not use one in my wife's car (hers was replaced in December last year, I got a Gold battery from Advance), or any other family members unless they were getting rid of the vehicle in a year or so.