As a Big Guy, 6 foot, 350lbs, I will admit I was cautiously optimistic when I read the reviews and decided to purchase these shoes. I have been completely blown away by how comfortable the Adrenaline GTS 23 are so far. I have only had them a short while, but they are my new favorite Shoe! For the past 8 years, I have used a different shoe by Brooks, the Beast, pretty much exclusively for the past 8+ years. I tend to overpronate when I walk, and as I mentioned I am not your typical "Runner".
Super Comfortable and good support. They feel MUCH lighter than the Beasts, like very noticeably so. I have only owned this for a short while, but I have put in a little over 50 miles at this point (Walking) and I can definitely say the Adrenaline GTS 23 is a great shoe so far!