It will maintain a 0g attitude, or a continuous trajectory through space, until low speed protection eventually comes into play if you wait long enough.
I've seen both sides and I prefer the bus, despite what most people think/say the aircraft is a joy to hand fly once you get used to the augmentation and ECAM does beat having to fish for the wrong checklist in the dark once you accept it.
If you approach the training with an open mind and accept that everything you know is not necessarily applicable anymore you should be fine...
S.