I like the new UI, but trying to use Google Home groups is a nightmare. My groups don't show up in the app, but when I make a new one, there it is among the old ones. Yet, none of them connects to the network. It doesn't matter that they are on the same wifi connection. They are still not reliable. Then, at other times, there they are and it's once again possible to use the group. There doesn't seem to be any rhyme or reason to this behavior, making it difficult to fix. It's a slap in the face.