Very helpful
Very helpful
By James B.
Response from Mastery Training Services· Aug 11, 2020
Thanks for the great review James! Glad you found your training helpful!
Wednesday, November 4, 2026 · Customer reviews of US businesses

The Fair Hearing score
Excellent
407 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Mastery Training Services is a leader in the corporate online training marketplace. We help organizations grow and become more successful with our comprehensive workplace training systems and services. In this way, Mastery fulfills its mission of helping build more successful, effective and amazing organizations. Call us at 1-800-258-3837 or contact us online.
Mastery Training Services (mastery.com) has 407 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
407 approved reviews, newest moderated first
Very helpful
By James B.
Response from Mastery Training Services· Aug 11, 2020
Thanks for the great review James! Glad you found your training helpful!
Jehovah is the True God. Sincerely, Melodie Lucy
By Melodie L.
Response from Mastery Training Services· Jul 31, 2020
Thanks for the 5-star review Melodie. We hope you found your training helpful!
Very prompt and polite service.
By Barbara
Response from Mastery Training Services· Jul 17, 2020
Barbara, thank you for the great review! We appreciate your feedback and business!
Good onboarding refresher to help people understand they have control over their attitude.
By Keith S.
Response from Mastery Training Services· Jul 10, 2020
Keith, thanks for the great review! Glad you enjoyed the course!
Content is still relevant, but video is outdated.
By Wes L.
Response from Mastery Training Services· Jul 6, 2020
Hi Wes, thanks for the feedback! We also have this course, which is much newer: https://www.mastery.com/products/coursecatalog/info?courseid=ttpccasa_vod Hope you come back and visit for more training in the future!
It was a simple effective course
By Kenneth G.
Response from Mastery Training Services· Jun 26, 2020
Thanks Kenneth! We appreciate the review and your business!
I had studied up on Universal Waste over the last month, so it was easy for me. Though i think your course is passable for anyone handling materials.
By Charles A. Mclain, J.
Response from Mastery Training Services· Jun 26, 2020
Charles, thank you for the 5-star review! We are glad to hear you found the course easy-to-use!
Excellent training videos and simplified test.
By Laurie F.
Response from Mastery Training Services· Jun 19, 2020
Laurie, thanks for the 5 stars! We are glad you liked your training!