Melissa was very helpful with …
Melissa was very helpful with rescheduling my appt.
By Anna D.
Sunday, November 8, 2026 · Customer reviews of US businesses
The Fair Hearing score
Great
813 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Guardian Interlock provides ignition interlock systems (also known as "blow and go" or "car breathalzyer" for people who need or want them after a DUI/DWI arrest. We provide high quality services and devices to make the process of installing and using an interlock as easy as possible.
Guardian Interlock (guardianinterlock.com) has 813 customer reviews on The Fair Hearing, with an average rating of 4.0 out of 5.
813 approved reviews, newest moderated first
Melissa was very helpful with rescheduling my appt.
By Anna D.
The representative was very easy to work with and had a very positive attitude and pleasant demeanor.
By Andrew
Tawana was extremely helpful and answered all of my questions. I feel confident that if anything comes up, she will be quick to help.
By Melissa
Melissa was very nice and knowledgable. I had issues with Smart Start this morning, actually from a contractor. So it was nice hearing a friendly voice like Melissa. Thank you, Don.
By Don
Awesome customer service
By David W.
Excellent - very friendly and helpful.
By Piotr
Thank you Tawanda Rozier for your awesome service.
By Dai
I talked to Tawanda Rozier earlier today and she was so helpful and professional it was one of the most pleasant experiences I have ever had with a customer service representative
By William