errors or unexpected behaviour? how many games will experience these, what is the base line between playable and not playable? are random crashes classed as unexpected behaviour or does it make the game an unplayable 1
I mean really not a big deal. After 6-12 months everybody will have moved on anyways. The games that are still played will be patched for next gen with the free upgrade.
They said 99% of games work, so it's probably only for the 1% that doesn't. Only annoying thing is the use of a DS4.