After "the split", it took some adjusting to get used to Swarm, but I really think thats its now a strong app in of itself that new users can enjoy. For me, its not so much a "social" app as it is a quantifiable lifestyle app. I like seeing where Ive been, how often Ive been there, what my streaks are, and be able to see all my checkins from around the world. I think the best part is being able to then go on Foursquare and filter search options by "places you havent been", which is HUGE imho. This is always the feature that gets my friends back on the Swarm/Foursquare wagon if they jumped off during the split. I use it daily and am excited to see what they think of next!
MK00001 about Foursquare Swarm: Check-in App, v4.3.1