When building websites, you always seem to have a shortage of time. Anything that helps in that regard can quickly become a great asset. This is where the plugin "JPG, PNG Compression and Optimization" comes in. Before, I would put EVERY image on our websites through on online compression service. And for every article or product created by our content managers, I would often have to redo the images. Using this plugin A LOT of time is saved. Not only for me and our content managers, but -more importantly- the visitor. Our sites load faster, noticeable by humans. Not just speed checking bots. So yes, I full-heartedly recommend this to anyone with a WP site.