Unfortunately, most discussions about WD are not especially useful and usually misguiding because of imprecise questions and answers. For example, if one would ask if WD is a good AV I could defend both Yes and No answers (for several reasons). The same is about WD performance and detection.
Many people show the test results to prove something, but most of them do not understand the test results and testing procedures. For example, there are big differences between AV-Comparatives Real-world tests and AV-Comparatives Malware tests. In many cases, the testing procedures make a comparison of the results impossible.
There is no simple answer to the OP question, because people perform different activities in a different way with different habits on different hardware with different software ....
The important pros of WD are probably as follows:
WD free (default settings) can be used by any user, even if the user does not know what is an antivirus.
WD is most compatible with Windows among all AVs (although not ideal).
WD free (default settings) on updated Windows 10 with updated software can be used together with Edge web browser as:
- a base of good security in the home environment,
- a replacement for another free AV,
WD free has several advanced settings (used in ATP) that can be activated by using PowerShell or ConfigureDefender. With these settings + Edge web browser, the WD free protection is similar to commercial AVs (small business versions), except for some missing features like VPN, Password Manager, Cloud Backup, Banking Protection, or Help Assistance. These missing features can be important in businesses and also for some home users.
If one tried WD and did not like it, then changing it to another good AV would be a natural and justified decision.