They were good, especially for JW's, and especially given the kind of music they had to perform. I grew up on Southern gospel music, which is full of feeling, spirit, life! This, to me, is the JWs' toned down, insipid version of that.
From what I've seen posted on this board lately, there seems to be a lot more emotion in JW Land these days, as if they're taking baby steps to a more Pentecostal type venue for their meetings.
I'm shocked, of course, but happy for those who got to experience a little pseudo-joy in JW music.