Vanguard doesn't have the bells and whistles that some other investment firm's online services have. I transferred a few years ago from what was then TD Ameritrade. There are also a lot of restrictions on frequency of trades in their mutual fund accounts. Make sure you understand them so you don't get surprised when you try to make a trade. Eg. you can only make one trade on a mutual fund in a day. So if you want to exchange funds from one MF to two other funds, do it in one transaction or you'll have to wait a day for the second one. Minor stuff, but it is annoying when you get caught up in it.
But overall, I find it works for me. The benefits of Voyager or Flagship status are quite good. All the best.