The biggest issues with the vault.
1) Stuff that we took for granted is no longer there -
Things like Gold, GoldF%, Laurels, MCoins, etc are all still available each month
What is not available are the rng boxes with black lion items in them. While not overly useful for a lot of us. The chance at a Black Lion Salvage Kit for logging in was always a plus in my book.
2) The Inability to actually choose what you want to do every day.
Because you have to "pre choose" PvE/PvP/WvW means that I will ALWAYS have PvE selected. In the past I would actively choose which set of dailies I wanted to do each day with how i felt when i logged in. Or if the enough of the guild chose to do WvW or if I just felt like getting myself facerolled in PvP. But I cant do that now. Its gonna alway be PvE, which is going to hurt the other game modes. The inability to change the weeklies after you choose the first time really is irritating as I thought i was choosing what choices i wanted to have, not the only ones i could do.