There's also the risk that aggregators will screw up something. On two separate occasions I saw someone arguing with hotel reception about a booking they made w

There's also the risk that aggregators will screw up something. On two separate occasions I saw someone arguing with hotel reception about a booking they made with an aggregator that the hotel never received. Customer says, "But I have the printout right here that says I paid in full!" Hotel says, "Sorry sir, you'll have to take that up with the company you paid. You didn't pay us."