Daniel Szwec

I have been going to Sullivan for almost 30 years. My experience has always been amazing. I am greeted the minute I walk in with a smile. I am treated more like family then a customer. Gabe and Dan have done a great job in finding a vehicle for me that they know I will love. The good service continues with a great service department that will keep you updated on the status of your vehicle and making sure your vehicle is fixed correctly the first time. I always refer family and friends to Sullivan because of their professional and curious staff from sales to service.

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We have been going to Sullivan Buick@GMC for twenty plus years. We have recommended Sullivan to family and friends. My husband and I feel that they are the best, wonderful to deal with and supurb customer service. Gabe Szwek was absolutely great to work with, a professional all the way. He does not pressure you and makes you feel at ease and like your family. Gabe was extremely helpful in answering all our questions and he is extremely knowledgeable in his field. That's why we go to Sullivan for all our cars, because of terrific sales people and great service. We also deal with Dan Szwek who is a terrific person to work with. No pressure and the most personable service. He is a professional through and through and a great salesman. From the girls in the office, to the service department, to the sales people, no other dealership can top Sullivan!!!!

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I had a great experience buying with Gabe! Very knowledgeable and helpful customer service. As well as a good price and it was all done quickly and efficiently. I will definitely come back here for my next car!

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Shelley, Dan, and Mike thank you so much. You have made purchasing from you a delightful experience. We have purchased two vehicles this year through Shelley, Dan, and Mike. Shelley was amazing called her up and I was approved before I arrived. I test drove the vehicle I liked and was out the door with my Cadillac below the list price.

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I recently bought a used Buick with the wonderful assistance of Shelley Barr, with backup from Dan Szec. Shelley was very informative, drawing on her years selling Buicks, and asked the right questions to narrow down the field. She worked with us and Dan and we are thrilled with our new (to us) car! Thank you!

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Since 1994 when Sullivan was a Pontiac dealer we have bought or leased 6 sets of cars here & have never been disappointed! There service department is fantastic!

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We had a pleasant experience at Sullivan Buick GMC Arlington Heights. My husband and I buy all of our cars there now because they are so polite. Everything always goes smoothly and there is no pressure.

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I generally trade in my cars every 3-4 years. This time I traded in my 2015 Buick Lacrosse for a 2018 Buick Encore Premium. It is my very first SUV and my dealership made it so easy. My salesman, Chris Lahey, was the best at clearly explaining all of the new features so I would understand. No pressure at Buick GMC and the General Manager, Dan Szwec, will work with you to get the vehicle you want at a reasonable, affordable price. Everyone is so friendly here...Just like Family. That is the reason I keep coming back!

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I just have to say that Mike Bott, Victor, Dan and Mike made our purchase smooth as silk, they were quick and gave a fantastic price. I would recommend to anyone, go buy a vehicle at Sullivan.

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I had been working with another GMC dealer and had such a bad experience that I was considering leaving the GMC family of vehicles and moving to Ford. Fortunately I put a call in to Sullivan Buick GMC because they excelled where the other dealer fell short. Their easy to use and helpful website provides their full inventory of vehicles with MSRPs and discounted prices. Additionally, it provides all the information necessary to calculate lease payments - there are no hidden fees, etc. I had burned an entire Saturday the week before with the other dealer but the Sullivan team was able to get me in and out in under two hours with a new car. The best part is that the employees were helpful and transparent every step of the way. I highly recommend this dealership and it saved a longtime GMC customer.

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