Malwarebytes AntiMalware advice - good thing? bad thing?

I have been seeing a lot of posts on the NIS forum recommending using Malwarebytes AntiMalware in conjunction with NAV/NIS, usually to help clean up some problematic virus.  I don't have a good handle on exactly what it is doing that fills some deficiency in NAV/NIS.

 

Should we discourage this type of advice, or let it go on?  It feels weird to me as an employee, but in sympathizing with a user that has an infected computer, I feel whatever tool they can use will be helpful.