Redweek has more traffic, which is great, and I get most of my rentals from Redweek. You have to pay to list on Redweek. It's not free.
go-koala.com is free to list. As you are listing your weeks for rent, you will see the net price you will receive after the 8% commission is taken out. You can adjust your price anytime you want, if you feel it's too low or too high.
I keep hoping go-koala.com will take off and become a big player in the timeshare rental industry, but so far it's been iffy for me, but it's free, and you cannot beat free.
I have all of my units for spring break weeks near Disneyland listed on go-koala.com. Last year they rented easily, this year, not one that I listed has rented. I didn't cancel them when I could to get my points back, mostly because I assumed the demand would be there and they would rent within 60 days. I guessed wrong, maybe?
Now I am within 30-45 days for each week. I have four of them. I have to cancel within 15 days of the start date of the rental to get 80% of my points back. This is Shell. I am deeding back my Shell soon. These are all two bedroom units. I have no idea why nothing is renting. I have them listed on Redweek as well. What a waste of money that has been for these weeks.