Wow . . . what can I say? After being a die-hard Interstate fan, and after having more than one Optima battery prematurely fail, this beast is getting the job done. It also is smaller than the factory battery type, so I've got some room for the cabling for my accessories now. I've regretted a lot of car purchases in my life . . . but not this one! I've ran it down to nothing a couple of times now, and she bounces right back (as she should). I feel like I finally found another decent battery manufacturer after a few decades of looking!