@Tiger41 our FS recommended it. After our first lot of donor prices and availability we decided to just use donors from Hawaii to lower the costs. As they are allowed to be paid for their donation they can stipulate what that payment is. Also it Wd depend on what their job is to what their out of pocket expenses are.
Our first preferred donor wasn't available, but was a lawyer from Chicago, so her payment was higher, her out of pockets were higher and the remote monitoring costs were higher as well.
In the end we chose a mother from Hawaii and she was available!
I guess it helped that we didn't have set dates when we wanted to go do were able to work in with the clinic.
Also in terms of success guarantees, be careful of the small print! If you have immune issues you may not be covered. Also I think they might have age and miscarriage limits to qualify as well. We looked into San Diego fertility centre, but it was even more money than Hawaii, further to travel and Disneyland has no appeal so there really wasn't any attractions locally! It's not like I cd just duck across the border to Mexico as well, that is not somewhere I'd like to go in my tww!