Costas Hernandez
Costas Hernandez at Cobb County Toyota

Costas Hernandez

Service Advisor

Cobb County Toyota

2111 Barrett Lakes Blvd
Kennesaw, GA 30144

4.6
312 Reviews
4.6

312 Reviews

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312 Reviews of Costas Hernandez

March 05, 2026

Dealership Rating
Employee Rating

Excellent communication, thorough and completed the work in a timely fashion Explained the work that needed to be done. More

by LISAHUB
Service Price Transparency
Workmanship
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Service Communication
Recommend Dealer
Yes

February 28, 2026

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Happy overall with time and service, except the mechanics failed to reset the button which caused me to continue to get a message that service was needed. I drove back into the service area and they took ca More

by wdlerner
Service Price Transparency
Workmanship
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Service Communication
Recommend Dealer
Yes

February 15, 2026

Dealership Rating
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Costas did a great job taking care of us! ! Thanks for for asking. Cobb County Toyota was a great place to buy a vehicle and then get it serviced!! More

by Josh
Service Price Transparency
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Recommend Dealer
Yes

January 23, 2026

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Very quick and efficient service . Very courteous staff and great customer service.clean environment.n More

by LAURAMAE.JAMES
Service Price Transparency
Workmanship
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Recommend Dealer
Yes

January 17, 2026

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30K mile service on 4Runner, got it done in about an hour which was great. Friendly, and transparent pricing. More

by subway.art0s
Service Price Transparency
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Recommend Dealer
Yes

January 08, 2026

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Employee Rating

Since 2007 I have come to this location for ALL my oil changes and services. Nothing really “special” about this location for me to refer anyone here. This past experience the agent was not pleasant. Not More

by EZ1207
Service Price Transparency
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Recommend Dealer
No

Other Employees Tagged: JC Cooper

January 06, 2026

Dealership Rating
Employee Rating

Left bolt loose on skid plate after oil change. So skid plate was rattling in stop and go traffic More

by JEFFREYECOLVARD
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Recommend Dealer
Yes

December 31, 2025

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My car did not get fixed way I wanted to. I need to take the car for the shop again. More

by HSUZUKI
Recommend Dealer
Yes

December 25, 2025

Dealership Rating
Employee Rating

Had to wait way too long for just an oil and filter change, hopefully the wait time will get better soon More

by GARMONCJ
Service Price Transparency
Workmanship
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Service Communication
Recommend Dealer
Yes

December 23, 2025

Dealership Rating
Employee Rating

Friendly and professional service with competitive prices. Costas is the best - very knowledgeable and trustworthy! More

by SHERRY8
Service Price Transparency
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Recommend Dealer
Yes
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