I just got my Verizon S8+ yesterday. I upgraded from a S7 edge. Yes, I do think it is a worthy upgrade from the edge.
I was not going to get one, I was just going to wait for the Note 8. I am still going to get the Note 8, but I am very glad I got the S8+ in the interim.
A few things I like are the removal of the physical home button and the addition of the on screen keys. I like the iris scanner. Even though I have only had the phone for a day the battery life is obviously quite good.
I am not sure yet about the display ratio, it is extremely long and hard to reach towards the top of the display. I do however like the amount of information I can see on the screen at one time. I do not like the placement of the fingerprint sensor, but it is easy to find with a case and it is very fast.
That's it for now, just my first impressions. I have to hold and manipulate the phone a little bit different than the S7 edge, but that is something I will bet used to. Overall, I really like the S8+ a lot. It is smooth, fast and an enjoyable smartphone experienceツ