A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
What was the OLTA or hotel booking website in the OP's example? If it's something dodgy, I wouldn't even consider using it.
OTOH, AmEx FHR or Hotel Collection (or Virtuoso, but these usually aren't booked online) can include good perks for the same rate as hyatt.com would offer.