I booked with lowestfare.com and I got screwed big time.
I had a mistake made on my booking which was basically only becuase of the way thier website worked. Of course they did not let me change it.
The refunded me next to nothing on a four star hotel in downtown Denver and charged me 200$ more to change over my two plane tickets.
I called the hotel directly and they said lowest fare can phone them and change the date and there would be no issue, but they cannot change it themselves as it's booked through lowestfare.com
I called lowestfare.com back and lowestfare.com told me outright that they would not change my hotel date and that it was not thier problem.
They were not helpfull and they did not even try to fix my issue. I ended up paying for a four star hotel in downtown denver and I never even checked in. They only gave me 170$ back for both plane tickets and my hotel out of the 600$ I paid. I then had to buy two new plane tickets and I had to book a hotel in a bad area of town so I could still go.
Lowest fare.com is the crappiest experience I have ever had in traveling. Never ever use them!