SmashBTC​
This faucet has recently made a come back with a few changes.
It has a BTC generator which generates at 4 sat/min at start and has maximum capacity of 1000 sat after which you need to collect the satoshis to continue generating more. But thats not all it offers you to upgrade your generator speed as well as storage capacity.

Generator Speed Upgrade:-
generator speed upgrade.PNG 

Storage Capacity Upgrade:-
storage upgrade.PNG 

Rules:-
rule.PNG 
I recommend that you do the storage upgrade depending on how much time you need between the collects rather than just upgrading it.
They also have Chatbox and Forum.
There are also several bonuses:-
Hourly Bonus
Daily Bonus
Weekly Bonus
Monthly Bonus
This is really a great site and I recommend that you do add it your worthy faucet list.