Much like how people said MvC3 had good netcode at launch, right?
It'll be the same old story as every other FG -- people think the netcode is good, then people start to learn how to play and then everything goes to shit as people's timing for everything gets completely bodied by the input delay.
Frankly, I expect nothing and I suspect I'll end up disappointed anyway.
It's legit just the Steam Release versions of 2K2/98 netcode made by Code Mystics, which is just SFIV-style netplay.
Most people don't realize that delay-based netplay holds up just fine on local connections. Rollback is about increasing the range of viable connections.
People are going to be sad on release when they're still stuck playing people in their own small state/area. It effects those in majorly populated areas much less