I used June Homes once because I needed a place to stay in the city for only a month. It was mostly fine, though really expensive. The roommate thing kinda sucked, not because they were awful but because they all mutually ignored each other. And it makes sense why they did that but it was not a great environment for me.

So in my opinion, June Homes and similar companies are fine if you're looking for under a year lease options (or if for some, you have money to spend and want to keep switching apartments through different NYC areas). But if you're looking for anything 1+ year lease, don't bother.