I would agree aesthetically 20” wheels do look better as well as the lowered look. The downside is reduced comfort and being more prone to damage from pot holes, etc. I guess it is what is more important to you as it is your car to do what you want with it. I have read posts in the past where people in the UK have gone for 20” but then went smaller because of the ride. Interesting outside of the UK 20”’ seems to be a popular choice, perhaps the roads are far better. Personally I went from 18” to 19” and to be honest I haven’t noticed any difference in the ride.