SE Black vs. Regular Silver: Improvements?

Question for special edition owners who also used the silver Keyone. Have improvements been made to the following:

- Reception: when I had my silver Keyone, I always had network issues, slow data speeds and my texts were always delayed. Have you experienced this on the black Keyone?

- Screen: I noticed some screen flickering with my silver Keyone, such as when pulling down the notification shade or returning to my homescreen with a dark background. Does the screen still do this? And is there still a straight line at the very top edge where the light kind of bleeds?

- Performance: do you notice a difference in navigating the phone with the extra gig of RAM?

- Front facing camera: is it still washed out?

- Side buttons (power + volume): the buttons on my silver Keyone were very loose and made clicking sounds when touched. I remember the DTEK60 having similar issues - it's like they would easily wiggle side to side when ever-so-slightly touched and this would make noise. Has the build quality been addressed?

Thanks!

Many other threads on this topic already.

I think the short answer is the phones operates the same. no changes in anything. ram only allows you to have more apps open at the same time.

Just ROM and RAM size increase, others remain the same.