Google Nik collection plug-ins

Thought I would try out these FREE plug-ins from Google, they work with Photoshop or Lightroom up to verison 2015.
The whole colllection includes:
Analog Efex Pro 2
Silver Efex Pro 2
Dfine 2
Color Efex Pro 4
Viveza 2
Sharpener Pro 3

Here is the link to downloaded the complete collection for Mac or Windows.
https://www.google.com/nikcollection

Here are some samples using the Analog Efex and Silver Efex plug-ins from Lightroom.