I am new to Chick Fil A as, until recently, there weren't any in my area. My kids, though, are seemingly obsessed with it as they've had it elsewhere, love it, and will travel quite a distance to get it..
I was interested to see what the big deal was about it, having heard from them and read about it here.
Like some others here, I was also underwhelmed with the food itself, but generally impressed with the cleanliness and customer service. We've been enough now that we've experienced some order screw ups (that cost me), and had no great rectifications, sort of just a "sorry" at the drive thru

, but I chalk that up to it being a new presence in our area and people there are no doubt learning, lol. (Perhaps in areas where there's a big presence, everyone - including employees - is more familiar with their seemingly legendary customer service.)
The drive thru is very quick even when crowded, with someone out there oftentimes with an ipad and an apparent real desire to get customers through quickly (which is great), and I think it's really nice having an employee running around the dining room helping out with whatever needs fixing, like order wasn't right, or didn't get sauces, etc. We've never seen anything like that before.
I didn't like the chicken sandwich, I actually felt sick after eating it, as did my DH, which was a head scratcher as we've previously enjoyed other chicken sandwiches elsewhere. I also didn't like the fries. Yuck. Too dense. So I've learned when I go now to get the chicken wrap with the apple vinaigrette dressing or just the chicken tenders with no bun, and no fries. I also avoid the sauces there as I think the Chick Fil A sauce sat too heavy for me. But those two things I enjoy. The rest of the crew here, including DH now, likes the deluxe chicken sandwich meal or something like that. (Although they got it while I was working this weekend and DH said he was awake all night with agita.) Again, not sure why because it's not like we never eat fast food. I suspect the oil is heavier than what we're used to, and the fries really soak it up.