You can see exactly what Bushel, and other MDM platforms do to your OS X devices using the System Information utility. As with all Mobile Device Management (MDM) solutions that interface with OS X, you can use the About this Mac menu item under the Apple menu at the top of the screen to bring up the System Information utility. When you open this tool, you will see a lot of information that can be derived about your devices. Scroll down the list and click on Profiles. Here, you will see all of the Device and User profiles that have been installed on your computer, the payloads within each profile and the keys within each payload.
Inside each profile there are a few pieces of information that define how the profile operates on the computer. Click on one to see the specific details for each Payload. Payloads are a collection of settings that a policy is changing. For example, in the above screenshot, allowSimple is a key inside the com.apple.mobiledevice.passwordpolicy payload. This setting, when set to 1 allows simple passcode to be used on the device. When used in conjunction with the forcePIN key (as seen, in the same payload), you must use a passcode, which can be simple (e.g. 4 numeric characters).
Using these settings, you can change a setting in Bushel and then see the exact keys in each of our deployed payloads that changed when you change each setting. Great for troubleshooting issues!