Are you in Slovenia? I would not worry about it too much then. I have actually got all of my orders from them intact. Some have taken longer to arrive than others, probably because I live in NZ and Abasio in Japan. So, the distances make it more complicated. Psyshop are efficient that is for sure, but (and that is a big BUT) if something fucks-up, don't expect them to send you another shipment or refund you $$... I still trust them though.
Just divide your orders into 2-3 smaller ones, they arrive faster and you would not loose as much if one of the parcels got lost...