I used the 8610 daily, and had very few issues with it. Occasionally I would have top feed issues, or paper feed issues. From a personal preference perspective, I think the 8620 is more user friendly. I also think wireless connections are quicker (I didn't time either one, but it seems the 8620 is a quicker machine.) I have not had any paper feed issues with the 8620, and it is used daily.