If the seller is not home then it's carded or can be left. No worse than AP. As for collecting, you can arrange whatever day and slot you like, and it can be left for unattended pick up too.

SmartSend is not the company that does the dirty work, they instead work with all local people. 

It's not for everyone but I have been amazed at the convenience, plus insurance is much less. It's handy for me as I don't need to lug stuff to a post office as I don't have a car.

All done online, with supplied pdf labels plus online tracking all the way. Used them about 4 times now and I'm impressed.