The ability to build an application that can be used by our congregation members, as well as those who are not in attendance at any service we hold! It's also very easy to use if you're new or have limited IT experience/knowledge - they walk through everything stepbystep with us so there aren't many surprises along th way when it comes time to launch your own site (or start over!).
I would like more features available from their end than what was included out of box but this isn’t necessarily something difficult to add later down the road once things settle into place after launching initial version(s). We had no idea how much content needed updating until someone showed up one day asking about where he could get his sermon notes stored online since most were lost due to fire damage years ago during move away renovations!