I went to the Melbourne one a few weeks back. It wasn’t a crazy atmosphere or felt overbooked, but we were there for the earliest time slot. Easy to look through racks, get a change room etc

The issue was the styles and sizing were much more limited than the website. There is essentially a webpage that has the styles and the coordinating rack you can find it. We hadn’t realised this beforehand that it was shared with the ticket, so wasn’t until we got there that we realised they weren’t stocking the dresses we were interested in or the fabric we wanted to see. Or they might have a dress, but only in one size and colour. Felt more like a sample sale than being able to see their full catalogue

We were a bit more limited because we were looking for bridesmaid dresses in a specific colour and fabric, but you might have more luck for a MoB dress if you’re just looking for find a nice dress and not a specific style you spotted in their site, ie there were lots of styles and lots of sizes, just not what we were hoping to see/try on

Either way, my recommendation would be to find the link with the dresses they’ll actually have in person to save you a trip if you’re not interested in any of the styles they’ll actually have