Heading to Bali in a couple of months and want to sort my visa in advance. I’ve seen iVisa mentioned a few times as an option, has anyone used them for an Indonesia e-visa? Is it quicker than applying through the official site or pretty much the same?
I used iVisa for my Indonesia e-visa last year ahead of a Bali trip and it worked well. The form was straightforward, they reviewed my documents before submitting, and I got my approval within a few days. In terms of processing speed, it’s can be around the same time, but the difference is mainly in the experience: their form is cleaner, and you have customer support to fall back on if anything goes wrong. If you’re prone to making mistakes, like myself, I would definitely recommend this option! 
The official portal is at https://molina.imigrasi.go.id if you want to compare. It works fine but can be a bit slow and clunky at times.
Either option is legitimate. For Bali I’d apply at least 2 to 3 weeks before your trip just to be on the safe side. Hope you have the most amazing time!!! Safe travels!