This feature had a profound impact on what I was eating. As I was also tracking my weight and activity levels, I was able to tie the three together to give me an accurate picture of what I needed to do better and which sorts of foods to really avoid. (I was really surprised to find that one of the worst offenders was pizza). This didn't mean that we gave up the foods that we loved, just that we became more conscious about how much of them we were eating.
The end results are not much of a surprise: to lose weight and feel better, I needed to moderate what I ate while staying active. The weight loss was not immediate; rather, it has been a slow improvement with occasional hiccups in the process. I have not yet reached my low of two years ago, but not only can I see myself getting there, I think that I will be able to sustain it better once I get there.
About a week ago, I stopped counting the calories. I had been slipping back to entering them every couple of days, then every few days. I don't think that I was staying that accurate. My plan is to only return to that feature if I start backsliding again. I have noticed that it was easier to avoid snacks when the back of my mind was continually reminding me that I could have them but then I would need to take the time to enter them in the app. Hopefully, I've built up good enough habits to keep the positive trend going.