Thinking of purchasing one for my computer on the daily go. 1) I've seen some posts here about battery problems, particularly with the 2015 models. Is this an isolated issue, or has there seemed to be more and more posts about this? 2) What is the real world battery life like for the 2015 and 2016 models? What are your usage cases? 3) These computers are limited to 30hz for 4k monitors, but what does that mean aside from watching videos and playing video games? Is there some lag associated with 30hz when dragging the mouse across the screen? Any slowness in animations? 4) Does the MacBook have the same problem with the Macbook Pro's in that the keyboard will sometimes touch the actual screen, leaving marks? 5) I'm thinking of purchasing this computer as a daily computer, as I said before. I would just like good performance and optimal battery life. Which model will provide that for me (m3, m5, m7)? Costs here do not matter 6) What are your guys' thoughts as MacBook owners? Any regrets? Surprises? Would you go back and purchase another computer? Why?