Parcel force sent one of my fronts a hundred miles in the wrong direction too.
Not got the 5.1 set as I've gone with the 3s, 2 sets of 2s, the center and sub. Very pleased with them. Any tips? getting the right stands can be tricky! I have my Aelite 2s on some Atacama SL 600s, with some non slip surface stuff so it would take an awful lot of effort to knock one off.
Not really got any setup tips I'm afraid as I've not had much time to play with everything yet although I don't feel like theres much to change, very happy with them for film and music (running off a Denon 4308). Do be careful with the sub position though, mine really one has one location where it can go, which is perfect for listening, not so great when I'm using my pc in the alcove of the room as the booming reverb is a little unplesant (although that goes for all subs).
Oh and parcel force was really a tale of woe and despair, first one went to the wrong place, next day I went to pickup but they hadn't got back to depot. Then I took a day off for the 24 hour delivery for the 2s. They turned up 4 days later (with 24h stickers on etc).