Looking for simple membership plugin

I am kinda new to wrdpress and I am looking for a membership plugin that will allow my visitors to create an account, have it approved, be able to change their profile info themselves, pay to renew their membership via paypal or a merchant account.

A huge bonus would be to be able to intergrate into Gravity Forms so when someone pays for a membership, they are automatically signed up for an account.

Any suggestions would be greatly appreciated.

I have looked at the lite version of “Membership” by wpmuDEV. Any input on that would be appreciated as well.

Many thanks,
Houston