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Reviews

Google reviews from home improvement sales professionals and owners who have trained with Grosso University, shown in full and unedited.

July 10, 2025

Review by Trenton Bc

Dominic and Dan are the greatest sales trainers in the industry! I Learned so much throughout the program.

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July 7, 2025

Review by Colton Nelson

Grosso university overcame by expectations and delivered great results, my skills have became impeccable

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June 25, 2025

Review by Steven Diamond

Dominick and Dan are two of the most high energy sales trainers I have ever met! They will get your team in shape to conquer the world. Highly recommend!

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June 19, 2025

Review by Robert Wyganowski

The Grosso 11 step training done by Dan was outstanding! It was by far one of the best training classes I have ever done. I would highly recommend any sales…

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May 23, 2025

Review by GA Castro Sales Team

So Helpful, love it!

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May 23, 2025

Review by Deivis Castro

Wendy is a great instructor, I thought I knew it all but she opened my eyes to a lot of techniques and many details to make the sales process great for both…

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May 23, 2025

Review by Jonathan Aquino

The coolest stuff was learned here today. A journey like no other a change for all eternity

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May 22, 2025

Review by Rob Ragz

Grosso University is some of the best training I’ve done.

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May 22, 2025

Review by Ben Wallace

A lot of great information I highly recommend going through this course!

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May 22, 2025

Review by R L

Great review of the process, plus some new info that was very valuable. Highly recommend the course , Dan has great real life scenarios.

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May 22, 2025

Review by Brent Stringfellow

Awesome program! Very informative Dan is absolutely brilliant and makes this training fun and interactive I would give 6 stars if possible.

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May 22, 2025

Review by Adam Weisbrod

Excellent sales training! Dan is the best!

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May 22, 2025

Review by mike bermo

Dan and Dominick were great. The content was amazing. A must for anyone in the home improvement industry.

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May 22, 2025

Review by Michael Duche

Very knowledgeable and kept it interesting. As a salesperson I am always learning and enjoyed this technique on selling.

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May 22, 2025

Review by Ahmed B

Best training program I’ve ever went through

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May 2, 2025

Review by Royalty Windows

Grosso University is easily one of the best sales training programs I’ve come across. I’ve gone through a handful of different systems over the years, but what…

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May 1, 2025

Review by Ursula Mc lean-Rojas

--- Review: Sales Representative Training Class with Grosso University - Intructor Wendy Harmeyer I recently completed a sales representative training class,…

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May 1, 2025

Review by Osman Melendez

(Translated by Google) "Excellent trainer! He helped me develop the skills necessary to succeed as a sales representative. His focus on conversational practice…

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May 1, 2025

Review by Odalis Lopez

Taking Wendy Harmeyer's class through Grosso University has been an eye-opening experience. Her ability to break down the psychology behind sales has…

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April 30, 2025

Review by Chuck Bonner

Best sales training in the industry! I've worked with other sales coaches in the past and there is nothing that comes close to Grosso University. The insight…

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April 25, 2025

Review by David Sisson

Dominic always brings massive value when he trains! He is a consummate sales professional.

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April 24, 2025

Review by Randy B

The training was exceptional. I got a lot out of it and will use it to make me a lot better

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April 24, 2025

Review by Jennifer Brewer

Dan is the best . His experience is far above any type of training I've had in the past . Traing plus the videos is life changing for me in my career.

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April 24, 2025

Review by Andre Claux

Really grateful of this training. 100% recommend this program. Dan was awesome the whole training!

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