I agree with pretty much everything said, except for maybe one thing. I am not 100% conceived that Barney choose to divorce Robin, because you never actually hear him take the out, its left as a little bit of a mystery. I think Barney reverting back to his old ways is maybe his way of getting over Robin??. Finales are never easy for any show to do and someone is always going to hate it (the trick is to make it not everyone). I will give the writers some credit though, those scenes with the kids must of have been filmed around season one, so clearly they stuck close to the ending they originally planned. Or they filmed multiple endings with the kids, and picked the best one that fit. Who knows?