Is it cheaper?
You do get some ads but...can't beat free.
You can of course subscribe to paid services like Hulu and Netflix that don't have ads.
A lot but you still need WIFI to use it. Just buy a 'Fire Stick' or ROCU if you don't have a smart TV.
All I pay for is my DSL line. I get all the other content for free including Prime movies with the fire stick.
I would be paying $117 for the basic tier on Spectrum with DVR Service. Now, I am paying $35 for Sling and additional $10 for a VPN and IPTV that gets me more than 14,000 channels, including every US channel. But, it you don’t want to go through the process of getting IPTV, you can get Sling and use an antenna to get local channels.