These shoes are very good for running, especially if you want something light and closer to barefoot running. They are made from very lightweight material, but it's enough to give you enough (minimum) amount of support. They are okay for training. I personally would recommend them more for track runners, because track is more about speed and running on soft ground. These shoes do give you cushion, but not as much as others do. They run extremely well if you're running fast, e.g. intervals and track repeats at race pace. They're lightweight to the point where it feels like nothing's there, but there's enough support to allow for safe and responsive running. They run pretty well too for trail running and cross country, but I would be careful choosing them, unless you are completely comfortable running on your toes/balls of the feet.

These shoes do not promote heel striking; they are for people who run on the forefoot, which is actually the correct way to run. I suggest making sure you have good running form before trying these shoes out, or you might risk getting really sore. Also, another reason to have good running form before buying these is because of the sole, which is made of a lightweight foam or something. It's not as rugged as regular, heavier trail running shoes, so make sure you don't drag your feet.

Overall, these are shoes that I think are excellent for road racing and speed, like in track, because of the lightweight construction, promotion of forefoot running, and decent amount of cushion. If you want to start running with minimalists, these are the shoes for you. They also fit very well and are comfortable. All this toe running is making my calves bigger.  :)

If you are training at a high volume of running on hard surfaces, you may want to try a more supportive shoe, unless you have good running form. Other than that, these shoes are great. I recommend them for the following:

- Speed training (intervals, track workouts, ladder repeats, etc.)
- Racing (both on road and terrain)

They are also good for long distance, but make sure you're careful about form and watch where you're going since these shoes are minimalists. In conclusion, if you are an experienced runner who as developed good and proper running form, and you are looking to transition in to minimalist running, these are the shoes for you.