I just did the best rate guarantee for the first time this morning. Saw a $209 rate for a Residence Inn in Atlanta that was way beat by $109 on Travelhero. No way I would have paid $209 a night for an RI but the $109 was a good rate. Even better is the $81.75 they changed it to in about an hour after I sent my claim form in to Marriott!

Don't expect to find these too often but it's nice to stumble upon a great deal.