Good product!

I have used this product on a couple of websites I have built and have had positive results, however after a few days of operation, on one of the websites, the product would produce a visible text error on top of the home page of one of the websites I used it on. This was regardless of the way I configured it, and the cache had to be flushed to resume normal operation.

This plugin also has paid versions that add some capability to an already good product.

I eventually switched to a different product as my standard for commercial websites, but still believe this product to be one of the better cache plugins on WordPress.org. It is a good product, and I recommend downloading the latest free version and running it for a few days to determine compatibility with your specific website!