I was a bit concerned, reading all negative reviews, after I booked it with almost 40% less price. But then had come reading forums where people were hysterical and canceled their bookings because hotels did not see their names on the system. I checked mine hotel and did not see it either - almost cancel my booking.
Then I read that this information actually comes almost before your arrival. So I was a bit nervous about it, since I was with my family on our vacation to San Diego. However, everything went smooth and I am happy.