What are the issues I need to be aware of if I use Gravity Forms registration?

This is a question regarding multiple WPMU plugins that I am currently using that impact sign-up:
Pro Sites
Blog Templates
Remove email verifications

I have subscribers struggling with the Sign-Up/Registration so I'd like to use a custom one using Gravity Forms Registration. My understanding is the issue with Blog Templates has been resolved . . . Yes/No?

How do I incorporate the above listed plugins to work with the custom registration?