I dont know from which country you are but moonbitcoin is one of those faucets that gives different rewards for different countries(richier countries=higher rewards).
For me reaching 5.5k satoshi in a week is something really easy also with 1-2 max claim a day so i don't see a problem....i just open all faucets once/twice a day and claim from them.
Other faucets give the same rewards for all countries and that's where some people can earn nice if they are from some poor countries.
If you are from usa/canada/australia or some rich europe country then faucets are nice if you want to try bitcoins but they are not a way to earn something or to become rich unless you don't have a tons of referrals.