The Brooks Glycerin 8 has been out for awhile. It's the first shoe to incorporate the new DNA technology also found in the Trance 10 and Beast/Ariel models as well. The shoe looks great. Brooks pays attention to detail and just holding on shoe in your hand you begin to see all the small detailing incorporated into this running shoe. This is their top of the line for neutral runners. I'm a bit spoiled as the Trance 10 which is their top of the line shoe in any category has a bit more cushioning and stability. I generally have a neutral gait. However I weigh about 240 lbs and the extra cushioning in the Trance 10 just feels better to me. The Glycerin 9 will likely be out later this year and likely will add some cushioning and stability and make it a contender as the best neutral running shoe made. I did not want to wait for the 9th edition. Again I have other reviews on ASICS , Nike and New balance running shoes. It's nice to have the DNA technology in this shoe but it's a bit overhyped. No better than ASICS gel technology which has been out for years. I still prefer the ASICS gel Kayano 17 over all other running shoes at any price. But I really like this shoe. It's got decent cushioning and good energy return. Your foot feels closer to the ground than with the ASICS. This shoe required a 4 mile run to get them broken in. At first the heel well felt like its was creating friction on my foot and there were some other little minor irritations on the front end of the shoe as well. After the 4 mile run I felt none of it. The shoe adapted perfectly. Heel cup is good and no issues on the front end. The upper materials are the best on any shoe I own. The midsole provides good shock absorption and compliments the DNA gel like material. It feels as though your being propelled forward as you run. Unless you have a significant pronation problem you really can't go wrong with this shoe. Brooks is doing their homework and putting out top line running shoes with well researched technology. I highly recommend this shoe. I took out the stock insole and put in a SOLE Dean Karnanze signature footbed as I do with all my running shoes. I believe this shoe will last a good long time. Sizing was not a problem. I always buy 1/2 size larger and the 2E width. Bottom line this shoe is well worth the money. I can't wait for the Glycerin 9 but for now I'm quite pleased with the 8.