My personal experience is that Chrome on my PC is more reliable/predictable than Safari on my iPad.

Now I am wondering if this is Safari/Chrome thing and not a mobile/desktop thing.

Certainly if the autofill doesn't work and I do need to to type it in, the PC is way easier. I'm thinking international travel for 5 people - all my responsibility and I don't want to get held up half way across the world when no one has slept for a day, work visas beign contingent on correctness, etc.