Buyer beware: you get what you pay for. Yes, this is a great opportunity, the prices are unheard of, and the people there are very nice! Just know that it is likely you will get the wrong variety. And maybe that's not a big deal, especially if you're a beginner and trying to fill up a new pond on a budget.
I purchased a Baby Doll lotus in the group order here two years ago. It ended up being Chawan Basu. Jessie was super nice and offered to send the right one at no charge the next year (last year). Guess what Baby Doll #2 ended up being? That's right, Chawan Basu. Lucky for me I was at least sent another small lotus. See, I grow in containers and there is no way one of the big varieties would even have a chance. I *almost* ordered a Baby Doll again this year, but have decided to pass. It's tempting, but with my limited space and conditions, I can't waste time on the wrong thing.
Sorry, I just felt it necessary to share my experience.