Functionality
After installing the plugin, head over to Sidebar > Simple Monero Miner Options. You’ll be presented a guide on how to setup the miner.

You’ll need to signup on CoinHive first then grab the the API key and paste it on the Coin Hive Public Key input.

The dashboard design is not using the WordPress style guide and there are some upsells on the sidebar. Still – it has a lot of customizable options via which you can control throttle rate of mining, show overlay disclaimer, style the overlay, etc.

There are many options given to customize the overlay box. Personally I would prefer styling them via css as it looks pretty barebones by default and changing colors won’t do much. Then there’s a handy statistics section at the bottom for checking out how well the miner is doing.
After setting up the miner with the API keys, you show be able to see a notification box on the your website. This is how it looks like on mine(I’ve used the Notification Popup option btw):

Its pretty cool that it shows the controls for hashing as well as the statistics. This definitely puts Simple Monero Miner one step ahead of the competition.