I'm on my 5th charging cycle and my estimated time in the battery drop down bar is starting to become more accurate, and battery life overall is starting to improve pretty heavily. I feel they need to give us an option to disable the touch bar personally, but based on the way things are going, it's only going to be around 7 hours. I'll be using it the entire time until it dies tonight at work, but I'm predicting at least 7 hours. I'm going to be coding, and compiling various bits of XCODE , php, etc. I'm hoping after it's had a chance to break in so to speak, it'll be much better results.
I'm not TO upset though, because honestly, I have external battery packs that I'd carry even if it got a solid 10 hours, so it's moot imo.