These are nice and comfy shoes, overall good product. However, there are two issues I have with it so far (had it for ~ 1 month)

1. Shoe is unstable  laterally in the heel!
This is a big concern and can result in tiwisted/swolen ankle, other injuries.  The designers of the shoe did not fully consider the fact that additional of large amount/softer portion of Adiprene+, other layer as a mid layer between harder outer layer and insole will lead to squishy/unstable behavior. The shoe is well cushioned - especially feels nice in the front foot, but this is a concern.

2. Heel pocket width has been increased, which results in loose fit and can also lead to potential injuries.

I miss old design of Supernova Cushion - previous generation, which might have looked less sexy, and had perhaps less cushion, but was comfy enough and stable when running in.

I hope that they will fix this in next generation of Supernova, and leverage lessons from the past designs...