I think it depends on what vids you watch. I saw the concert from some iPhone upload and Rih sounded horrible and then I saw it again thru a camera recording she she didn't sound as bad...typical "sing two lines skip two lines" singing, but not cringe worthy.
Mother Mary, Man Down, No Love Allowed, AOTL (like what is it even doing there? It seems filler-y like "hey we have a minute to spare"), and DSTM need to go. Stay was amazing vocally, per the usual. Surprisingly RS101 was a standout performance. The screens for the song were really cool. Jump's usage of the fire was amazing as well. Also surprising was how hype the crowd got for most of the Unapologetic songs. They went nuts for PIU and I mostly heard them singing Jump & L7S (especially LS, damn all I heard was them over Future). She only sang like 40% of What Now but the fire was cool. I liked Numb's choreo. Wish the TTT era songs had new choreo. Seems lazy they had all this time and its the same old. Diamonds is kind of an awkward closer. On paper it fits but to close with the mid tempo...kinda awkward idk.
End rant
Edit: and rih, get the **** outta here with HTILY being there. She admitted she loves performing it well too bad no one wants to hear that ****. Ugh. We missed out on Fire bomb for some overdone ****. Sigh.