My comic releases all the pages of an episode at once (18 - 25 pages of story), and in a single episode, and I have had some people say it can be a bit of an "exhausting" read. However, as the writer it works out better from a storytelling perspective, because it gives me a chance to go back and fix any problems before release making for a much cleaner episode by the time it comes out. Which being a comic with an overall continuous story, is very important.
There are definately some ups and downs, but as far as I can tell, releasing in bulk hasn't really caused any major issues for me, and it's handy to have everything organized into one single episode.