Excellent shoe for fast paces. I use it for interval workouts and fast runs, tempo runs. However, it is also a shoe you can wear for long runs, even for a marathon. Paces of 5:15 and below. I ran the Athens Half Marathon 21km in 2026 with these in 1:43. I recommend half a size up from usual, although in adidas I am generally half a size up (42) compared to Asics (41.5). Compared to the Asics Novablast 5, which I ran the Athens Marathon with, I notice differences, such as feeling the Boston 13s are stiffer, especially after many kilometers (over 20km), but at the same time, they push you and you go faster, and I think that in a marathon they will perform better after 25-30km when your legs are very tired. That’s when the rods will work. I still have to try this. I also think they teach you to land more technically correctly, as they have less material in the heel, resulting in landing more on the forefoot, which is safer for the knees. The front part of the shoe also feels quite stable (it is wider). In conclusion, the performance/price value for money is excellent. At 80 euros, which is often available on sale, you get a reliable shoe for many kilometers, over 800 and up to 1000+ if you are light. I am now at 500km without any wear. Very satisfied. P.S.: As a new marathon runner, I believe that up to 100-120 euros is enough to invest in a good shoe and do your job, except of course for elite runners.