Why I don't like and no longer want TE4:
1. I don't like the look/graphics - but that's purely subjective so ignore that.
2. More button presses to do the same thing - a PITA in a darkened room.
3. Maddeningly slow performance at times and slower performance always - I just don't think the Roamio's (all models) have the processing power for it. Maybe the Bolt/Edge models handle it better.
4. Network issues with the Mini's requiring frequent reboots. Zero issues running TE3.
5. Lot's of people reporting A92/93 failures now - maybe from overstressing running TE4? I don't claim to know.
6. Frequently causing loss of WAN IP address from modem to router - this appears to have been fixed for now but was a major problem for over a year. Never an issue with TE3.
7. "Pre-roll" ads inserted before recording playback - at least you can call and have them turned off (for now).
8. Black screen when using Mini.
What I DO like and why I upgraded:
1. Auto-skip feature.
At least for me, the one DO doesn't outweigh even a portion of the don'ts and I'd like to revert to TE3 as I was told I could. But now I can't because my ten Mini's would become doorstops and TiVo hasn't fixed that.
I don't care to "push" my opinions or tell others what to like or dislike - I'm just stating what is so for
me so others can make an informed decision. If you like or want TE4 and it works for you, that's terrific - enjoy it!