In the points redemption store, there are a few limited rewards. As far as I know , you do not need to have many quest unlocked to get the rewards. Of course, you need to do the quest in order to get "monster points." The rewards are there until 8/31. I found the rewards cute. Here are some of the rewards..
swimming pool and sunflower
butterfly net and cage
an orca and a dolphin lmo
There are few more items like beetles and a sunflower hat.