In my personal opinion, the whole series led up to what was purely inevitable. Another one of those classic on and off sitcom relationships where sometimes they're dating, and sometimes they're not - but in the end, they end up together. Woooooo hoooo. Shocking. Pulse-enhancing. The other problem I have with this conclusion is that the whole premise of the show is how Ted met his children's mother, but in the end, you find that they ended up together but it isn't relevant to the finale. In the finale, the big story is that Ted and Robin are together. The whole show is about Ted constantly going through different trials and through different lovers to find the woman that he needed, and she finally showed up in the last season. But the finale just throws that all away and you find out shes dead and he needs to get with aunt robin again. Is this really the best they could have done.
I think that the ending was great, it was a great show and they did a fantastic job on the finale. I don't really know what else you would have wanted, everyone wanted Ted and Robin to end up together and they did just that. Sure it was a little late, but it was still a great ending. Now just like every show it can't be perfect I hate how they left the Pineapple incident unexplained, but other than that it was great. Leading up to the finale we found out what Barney finally did for a living, and we go too see Ted be with Robin.