It's a phone after all:
The stock dialer is pants. This app is fast and customisable. The ui is great. Slide left or right on acontact to sms or dial. The best dialer. Contacts+ may have the look, this has the muscle.
You got mail :
All your email in one place. You will end up going pro if your a power user. If not the free app is superb. Immense custom options. Push notifications that work and a determined developer = great app