It works, but it is a bit of work.
a) in Lightroom you can't have smart collections which sync with Lightroom (online)
b) Portfolio does not update automatically from the collections which are sync'ed
It is especially b) I have a problem with, which also means that I do not do as much with Portfolio as I feel I should. But I'm using it as it's free (comes with the subscription) and it does just enough for me not to look else where.
It is "not" that difficult, it is down to shutterspeed or tripod, or an combination of both. It does also help to take lots of photos to get the technique right.
But, some of the photos you see also have been sharpened to the point where they stop looking real.