I purchased a used Infinity Q50S and Colin was my salesman. He knowledge of the workings of the built in Navigation system was extensive. He knew how to program the car's many electrical components. He saved me reading the over 100 page users manual. I did not feel pressured to make a purchase. I just felt this car was right for me. Since I have now had the car for over 1 month, he has been in contact with me to make sure that I am enjoying it and if there were any problems. I mentioned the couple items that I was still waiting for and he checked up on them to make sure that the mailed items were sent to me (SD RAM card and air valve caps.). I would highly recommend Infinity of Linwood and especially Colin as the sales representative. I would rank him at 5 Stars with the dealership at 4 Stars. The reason I am not giving 5 stars is because I am waiting for a $50 check from finance. (I over paid by $50) and Chris (finance) said a check would be coming to me soon. As of 24JUN21, it is still not here.