My workflow: Have these programs running simultaneously - slack, excel, 4 safari tabs, airmail, calendar, and powerpoint. I recently posted a thread to help me decide between macbook (M7 - 2016) and 13-inch rMBP. Thank you for suggestions. I purchased macbook and tried for 10 days and then returned for rMBP. Just wanted to share my experience: Macbook likes: 1. Keyboard (surprisingly) 2. Insanely light weight 3. Screen quality 4. Ability to charge with external battery packs 5. Truly a device that can be used on lap without feeling the weight One port was really not an issue as most of my stuff is on cloud. Macbook dislikes: 1. To get serious work done, I really missed the screen estate. I could not work long on macbook due to smaller fonts (did try to increase the fonts as well). I frequently had to lean forward to read and get the work done with concentration 2. Battery life was mediocre. I was getting about 7-8 hours. While this is far better than PCs. 3. The cost. Refurbished rMBP (256gb) was $200 cheaper than macbook Bought rMBP and after 11 days, I am damn sure that rMBP is the right machine in terms of all aspects. Couldn't be much happier.