Is T-Mobile 5g Internet for me?

I have been a customer for 11 months and have the have the KVD21 unit.  It's been 95% fine.  There's 21 devices connected.  Running a 4K TV and my computer is no problem.  I back feed my whole house Ethernet into the T Mobile unit.  I run my main TV and my main computer thru the Ethernet and everything else by the dual WiFi of the unit. Download at  evening prime is 40-70,  and the balance is 70-150.  It's the same whether 3 bars or 4 bars of signal strength.  10% of the time it's 5 bar. Combined with a TV streaming service I saved over $100 per month.  My optic cable was only giving me 45 for download.