Yes, and for the most part it is easy to navigate. This one time, however, I had to call the helpline because I couldn't locate something, and not even the person on the other end could find said thing.
Yes, MyGov is interactive, we can do our account things online and they have a phone app too. Of course, as with all things government, it doesn't always work and there are a lot of complaints. A lot of the time it is simpler to get in the car and go to the office.
Yes, us pensioners mainly have to, and the government encourages you to use it too.. so older people without computers have to line up and wait in their unfriendly atmospheric branches! Recently I wanted to hand a document over the counter, "she" said scan it whilst in their office for them! No - it is not easy to navigate to some areas and I find it slow to access as well.
I have used it and found it frustrating. Forget your password and you're in for it - can't just reset like with anything else, but have to set up a whole new account and go through the process of linking everything to it again. Hopefully it improves.
I don't mind it. I have used it to claim my parenting payment (or whatever it's called after you have a baby). But I had issues with my husbands trying to claim his dad and partner pay.
What I really like about My Gov is you can link it to the ATO and Medicare so you can easily get your immunisation statements for daycare/preschool.
Also because I linked it to the ATO it showed up all the super accounts I had money in. I thought I had consolidated it but hadn't. All I had to do was press a button to request a transfer to a different super fun which also showed on the screen. So easy and no paperwork