With the arrival of the baby, the dynamic has irrevocably changed. Lily is now looking every year her age and then some and I would say even she's started to look frumpy. Barney is so worn out with his character that they seem to be trying to morph him into "relationship guy" which, sorry, defeats the whole purpose of the character - as tired as it is - that they spent years establishing as a certain way. Ted is, as always, the last person to get anywhere, do anything, meet somebody and say the right thing. For me - Robin is the only still fresh character on the show.
The show has gone from being Ned & Stacey meets Cheers to Mad About You meets Freinds. Blech.