I think I'm liking it because I'm seeing how much I've improved I've been running 3 1/2 blocks at the beginning instead of just 3 and my pace has picked up without me even trying and i just don't feel as exhausted after. its no longer oh god i have to run this block please lord no!!!! its like I can do this and possibly a little more. anyone else have this happen? i think i run a total of 6 blocks now before it was 5 and yeah its not alot but it improvement.