We have now been using the Powr.io plugins since a few months now.
We have started with the gallery plugins as we were looking for an easy way to show a picture gallery of our product, which would be nice looking and attractive.
This plugins really delivered what it was supposed to do. Nice look, easy to configure and easy to integrate to Shopify. Exactly what we needed.
Once we were completely satisfy with our use of the gallery plugin, we started using other plugins such as youtube, instagram, microblog and other.
All came out great on our web site.
We are fans and definitely recommend it to other shopify merchants.