Worst experience going through Online application. They are not good at handling Online system, lots of bugs and glitches and those are still not fixed. Another biggest problem is photos. Online system accepts photos, but when they send it for printing either their printing system or a human rejects the photo. Weird issue is they don't bother notifying people to resubmit photo, looks like this is someone else's job and that someone else is doing something else but not his job. My application was in progress since June 20th, and after like almost 6 months now I receive email to submit photo because previous photo that I uploaded isn't as per the requirements. I don't trust their online system at all.
Decision is yours, but my suggestion is GO FOR PAPER APPLICATION.