Thank you all for the feedback, I have read it all and really enjoy hearing your experiences and thoughts.
Earlier today I have increased the claim amount from 10 to 15 Satoshi. It is a small increase I know but hopefully the start of many.
... missing one thing - referral program. I think it would attract more users to your faucet.
A referral system is something I initially decided not to do, but I think you are right as I am starting to see the value it can add for users. I will certainly update here when this feature is added.