Tmobile fiber

Has anyone who had xfinity jumped to tmobile yet ?   Or are there anyone from tmobile fiber the left to come to xfinity ?     

The reason im asking is because ive been complaining about the capped upload speeds for xfinity for a long time now and they are doing absolutely nothing to either uncap it or raise the cap because since I am a power user and my devices are suffering from the cap limit horribly.   The only option they gave me is to get business internet with an outrageous installation cost for them to bring it to my house or i can cut the amount of devices and security cameras in my house when really all they need to do is raise the bar for upload speeds since we are not in the 1990s and early 2000s anymore.

I would very much appreciate any feedback given through exerience between the two as im about 80% certain that i am making the switch unless there are good reasons not to.   Im fed up with xfinitys nonchalant business practices and laggy internet because they wont raise the upload speeds