Hi and welcome! I spent loads of time looking into this, and had it narrowed down to the sugarman estate or Olowalu. Of those, my top pick was Olowalu, mainly because of parking issues (only a certain number of people could park at sugarman, I forget the number, so we would have had to rent a bus and it just got too complicated). The house itself at Olowalu is nicer than at sugarman, though you techinically cannot have guests inside the house (just wedding party). The grounds were lovely.
I would highly recommend Lori at Tropical Maui weddings, I was going to have her as our planner. Super nice and helpful on the phone. Her prices are very reasonable, charging only $900 as a flat rate for her portion.
(We ended up going with the four seasons, though, because (1) we could be assured the food would be great - we aren't able to do a scouting trip, and (2) it actually ends up being slightly cheaper than Olowalu, after taking everything (tent rental, catering, clean up fees, etc etc) into account. I am a bit sad because I won't be able to have everything set up the want I want, but I think it will also be less stressful.)