I enter most of coins into both Moneta and Tantalus. Both systems have their benefits and limitations but overall I prefer Tantalus. Among the things that Moneta does better than Tantalus (IMHO) there are only two reasons that keep me from discontinuing the use of Moneta.
The first is that I can carry it with me and add coins without an internet connection. I don't do this very often but it is nice to know I can.
The second, and more important reason is the ability to print flips. The addition of this feature would vastly improve the utility of Tantalus.