I have the original version of the Oros jacket (it was also a Kickstarter). Am definitely very pleased with it and would buy again. I've also backed the Kickstarter for this one (specifically, the gloves). My only criticism of the jacket is that it's somewhat chilly when you're just standing in place. If you're moving at all, it's super warm. They may have fixed this in the latest version.

Also, fair to note that I've never felt a need to wear anything more than a t-shirt underneath the jacket.