How do you feel about the changes?

Very good! Very few spam comments and almost no phishing attacks.

Will they help or hurt Steem from growing?

Help. Once Resource Credits can be delegated, I will rent most of mine for profit because I have much more than I need for my own Steem activities.

Are we in a better or worse position than Hard Fork 19?

Much better because now an internal market for RC's and the ability to delegate them can be created which will make apps much better able to onboard their own users.

What do you wish made it into Hard Fork 20?

Early voting penalty no longer goes to the author of the upvoted post. I wonder if it had been better if the early voting penalty would've continued to go to the author - except in case of self-voting. I would much rather upvote someone early if I knew I would be supporting them instead of wasting some of my curation rewards entirely. But what I can't help but think is whether some people would've just switched over to self-upvoting early from alt.

Why upvote early? Because at least I hate waiting for 15 minutes before I upvote a comment in a fast-paced exchange. If I decide to do it later, I often forget. This could be solved by an UI delaying the vote but the only user having a large stake who has paid any attention to this idea is @acidyo. I'd like to hear from any app devs if they thought this was a good idea.

I've noticed that the change in early voting penalty has made many more users pay attention to maximizing curation rewards which has had the effect of increasing their use of SteemAuto. People seem to be commenting somewhat less now partly because when you'd upvote manually you'd also often leave a comment and because upvoting a comment now involves having to pay attention to early upvoting penalty.