After 2 successful trade with the seller I need to comment on this. Everything is excellent from communicating, knowing the delivery dates, tracking the parcel etc.
Just note that please communicate with him when you want it to be delivered as he might go out station sometimes and he do have certain days of the week whereby he will go to the post office for shipping out the parcel.
Note that this is Abloy hence if you do your reading and homework you will realize that the security is top notch...well unless you have few kilos of pure gold in your house then you need to invest in a lot more but this is enough to deter occasional/part-timer/hobbyist thief/robber....