What exactly this software does?

The software allows you to reserve and purchase items as soon as it goes on sale. You can buy multiple items simultaneously on one shop or multiple shops with just a click of a mouse. It also has an option to allow you to set the bot to start at a specific time, while you are not there and the software will start at a time and grab the items and notify you, if the items match your criteria.

It can automatically purchase the item from your given PayPal account as well.

The bot can be customized to meet your exact needs as well.