I had an Interstate Megatron 2 that had been slowly dying on me. After a recent oil change, Firestone said it was down to 50 Cold Cranking Amps, so I decided to finally bring it in. I had the battery for 27 months so I was still within the pro-rated warranty period (45% off!!). I brought my truck in about thirty mins before the store closed and I was quickly greeted upon walking in. I briefly explained my situation to the gentleman behind the counter after which he took my keys and immediately pulled my truck into the back to do a battery test. Within less than five minutes he was back. He explained it wasn't quite down to only 50 cold cracking amps but it failed one of their two "tests," so I was covered. I trust an Interstate battery test over a Firestone test any day haha.
The entire process from walking in to pulling out took 15 mins or less. They were fast, friendly, efficient and even pulled my vehicle to the front door. It's all about the little things and that was a nice touch. I should note also, every person I spoke to either asked if I had been helped yet or offered me a place to sit and free water in their lobby. I drove from Ahwatukee, but I will definitely come back here when I have ANY battery needs. Interstate rocks and my truck turns over like a dream! I couldn't be happier.