5G home internet keeps dropping

I'm also desperately trying to move away from Xfinity and was so excited to get the email that T-Mobile Home Internet was finally available at my address.  Immediately set up the equipment after delivery, and was happy to see that with the gateway in an upstairs window, I get five full bars of connection on my gateway.  But, even though I've only had the service for two days, I think I'm going to have to return it.  I'm getting the same performance issues everyone else is - in the morning 7:00-ish, I can't even get a wireless connection on any device.  Then twenty minutes later I'll test it at 300 Mbps download.  Ten minutes later it's back to .2 (yes, point 2) Mbps download.  All of this is with "Excellent" or "Very Good" connections on the gateway.  This is unusable as I work from home.  I also called Tech support, who told me I have two towers close-by and that they may be working on them right now.  Sounds like everyone on this thread may all coincidentally have people working on their towers right now.  The connection is faster and more consistent in the night, but unfortunately I use it most during the day.  Too bad...I REALLY wanted this to work.  I'll try it again in another year.  Until then it's back to high prices at Comcast.