Same experience regarding crashes. It's rock stable. Also performs well. Graphics - some users complain they aren't as detailed as the Witcher 3, but they are a huge visual upgrade over the graphics of the last game.
So it's better written and has better graphics. The gameplay is also improved.
The bad parts :
1. It has a few "Bethesda cliches" that many gamers dislike, such as bullet sponge enemies, armor that doesn't work like armor, and the game is too easy, especially on Normal difficulty, once you play for more than a few hours. There is also an enormous pile of stuff all throughout the world, and this time around almost all of it is useful, and so you end up exploring about 1 indoor area before you are forced to sell your loot. I don't like this - I find the repetitive sale trips boring, and I don't like "you are over-encumbered and cannot run!" happening every few minutes. You dump some stuff, but then a few minutes later, you find better stuff and grab it, and then dump what you have, and so forth.
The inventory and gui for character data has always been bad. It's supposed to be because you are using a Pip boy, a shoddy wrist computer, but really you spend so much time using it, it would be nice if the interface were more efficient.
The controls reuse the same small number of buttons too often. This is especially problematic when using the build interface. I think even console controllers have more buttons than the game takes advantage of. The grenade key and bash key are the same key. Various other control flaws that lead to mishaps.
Finally, they introduced a new dialogue system. This was a failure. Several reasons :
1. There's only ever 4 conversation choices, and the developers did not have the discipline to use less than 4 options in cases when it doesn't make sense to say more than yes or no.
2. It's often unclear what a dialogue choice will do - simply failing a persuasion check can result in violence, for example.
3. A single perk tree and a single stat seems to govern whether your character ever has a chance to talk their way out of violence. Also, the stat points you need for charisma - all 8 or so to get your charisma high enough and get Local Leader - are extremely costly, as this is about 40% your initial starting points, cutting into combat capabilities. The last game, getting a high enough speech skill was a lot less costly.
4. There's not any kind of interesting choices to make in dialogue, and it seems to rarely matter if you try to be clever or not.