We used the Costco program for purchase; the salesman, Scott Heger, was friendly, professional, and thorough in every regard. Spent time with me and appraised my vehicle even when I told him I was visiting another dealer the next day to check out a 2018 model. We didn't have to spend time waiting around for him to endlessly meet with a manager to negotiate the deal (Costco negotiates the price ahead of time). I half expected the Costco process to result in the dealership treating us like second class customers; it was exactly the opposite. Scott spent time with me going over the vehicle's features on an intial test drive visit, and then again when my wife jouned me, before we signed anything. Once we committed to purchase, in the finance office they explained everything clearly and openly. They did try to sell the extended warranty, but I didn't feel any pressure, just a straightforward effort to sell the benefits, not overdone at all. My wife had lost her gloves, thought perhape she had left them in the vehicle or elsewhere in the dealership; Scott was very diligent in following up every possibility to look for them..
Finally, when you're sitting at a car dealer waiting for various things to happen, you overhear conversations of other sales people with other customers. I was impressed by how open and clear the sales people were with the other customers; one seemed not at all ready to buy Honda, but the sales person spent time explaining not only the features of the new Hondas but explaining some options regarding their older vehicle's value, payoff, and implications for payments.
For purchasing a Honda, I would start at Honda Superstore of Lisle.
I have had some minor issues with service, nothing significant, just small things I would chalk up to them being very busy and having outgrown their service space.