1. Chrome seems to be really sensitive to mouse movements. Specifically, it constantly goes "back" by accident. This happens a lot when I am looking at my deals or customers in a chart/list format and I try to scroll to the left of the list.

2. I found uploading attachments to not work on the first try. I have to constantly re-try or I give up and drag and drop

Safari seems to work better for the first issue but I have not really noticed if it is really better for the second issue. I would really appreciate to hear what others are using and your experiences.