Yes they did a decent job. They are getting better and their stage presence is really improving.
However.... We know these girls can sing... but why can't they show that off when they are performing 'big' songs like BO$$ and Miss Movin On. All the harmonies/choruses were pre-recorded and I just don't get it. BO$$ is, dancingwise, not hard at all... and Miss Movin On doesn't even include dancing.
I'm a performer myself and yes, I do projects that involve some pre-recording as well, but that's only for HUGE dancenumbers PLUS the pre-recording will only be used as back-up and is only on for 35% of the volume of the vocals.
It just seems to me that their vocals sound AMAZING on acoustic sessions, but when they are performing on a big stage with the official, big production beats... their voices seem to be lost in the music. They're going everywhere and they're just not stable imo.