This gave my MacBook a new life!!!
I was experiencing the bloating battery problem in my MacBook Pro 15" Retina, to the point where the trackpad almost didn't work anymore and the bottom of the MacBook was balancing on the bulge that had been created by the expanding batteries...
The repair went exceedingly well! I followed the instructions (which are very very good and thorough) and within an hour I had the new battery installed and was up and running again :)
I actually did not use the adhesive remover - I was able to get the battery sections out by very slowly but firmly pulling on them until the adhesive gave way.
Don't hesitate - do it! I have since repaired 2 other MacBooks and gave them new life!
One thing to pay attention to: when putting the motherboard back in place, pay attention to all the connectors so that they don't end up under the motherboard where you can't get to them anymore.