I like that you can have multiple people in one group, so if someone is not available or busy it's ok with me because they will be added later when/if convenient - which makes sense since we are all adults here :) It would also make things more organized as well (which i'm sure was an intended goal).
There could possibly still use some work done by developers but overall this has been great experience thus far!! We've had several referrals already through our Facebook page using "Share Some Friends" App-it works really good.