The episode starts with the 'mother' and her friends meeting up together at 'McLaren's Pub'. But not the one with Ted and his friends, when a call comes spilling tragedy for the mother. Then one by one the episode goes through the times when Ted and the mother came almost face-to-face, but missed each other. Christin Milioti gets full space to showcase comedy as well as some emotions that we have wanted to see. We always wanted to know more about the mother, which was expected much early this season. Now with only 8 more episodes to go, the creators must have felt it is already too late, and their previous episodes have earned them the worst 'season' name for them, too.
In the end, though Ted doesn't 'meet' meet the 'mother', but we see them very close enough that we can anticipate some interaction soon. Now that, she has got her band back, and she will be performing on Barney-Robin's wedding, she will be around for Ted. Well atleast the receptionist who gives her room thinks they would be a good match.
The slow and boring start of this season is getting some fire now- so late in the 16th episode. We would have wanted more of the mother in this season, and the creators have got it just now. Looking forward to some better episodes in the next crucial weeks.