Oh interesting. I guess I only follow the fund purchase flow on the website once and a while and everything else is automated, so I don't end up using the site as much. Probably makes me a not-so-great testimonial in hindsight.
Most of my Vanguard investments are in a very small number of IRA mutual funds which have automatic monthly deposits configured, but even just for the few trades I do with fun money each month the current web UI grates on me. I know it can be better, Vanguard used to be good at this.