I have spent now exactly 3days with one ui plus pie on my S8+ and honestly enjoying it to the fullest.
Before, i was sceptical to download the update after going through most of the comments made on this platform, but I took the risk and it yielded positive results.
Truly I don't have a single problem mentioned by the S8+ users. My phone is exceptionally stable. Enjoying the new experience.
Thanks to Samsung Team.