In my humble opinion (and I understand mileage varies for each person and their viewing habits), the NFL Sunday Ticket streaming package is superior to how you can view games, in comparison to the satellite offerings.
I, myself, am a longtime Steelers fan. If the Steelers are on during the early window, that's the game I watch and nothing else. If they're on a primetime/late window slot and I can browse around in early afternoon, the Sunday Ticket streaming app allows you to pick and choose up to four games to display at the same time in a full-screen quad box setting. (In comparison to the 4-game mix, where you can't pick games, and there's the border around the screens.) I use this to either enjoy other AFC North opponents games, or I can utilize one of the screens with Red Zone Channel. It's also easy to swap games in and out if one becomes a complete blowout.
In regards to DVR capability, I don't need one. Short Cuts (losing this from the satellite package was unfortunate, IMO) are available for each game from Monday-Wednesday, and I can consume a whole game in 30 minutes with no commercials. I usually catch up on the games I didn't get to watch much through this. (This leads to a deeper rabbit hole that cord-cutters don't really need DVR capability, because of on-demand, but that's a whole other thread.)
From my vantage point, the only downside to streaming-only vs. DIRECTV satellite is not being able to quickly bounce back to a local affiliate game on CBS or FOX if I'm on a Sunday Ticket channel. However, I've come accustomed to quickly bouncing between apps, so it's not the burden that some make it out to be.