Very reliable order processing, inventory numbers, and delivery (including same-day). I keep coming back here again and again.
Let me tell a quick story... I tried to order a specific large TV from no less than two other Swiss online shops that both first claimed that they had the TV in stock, but then cancelled the order and said that they did, in fact, not have the TV in stock after all.
I eventually ordered the TV from Galaxus instead, where they said they had one left in stock. Directly after my order was placed and accepted, the the item was updated to being out of stock (i got the last one). This is just how it should work, but as seen above, many other shops don't work this way.
Galaxus stated that the TV would be delivered in 2 days, which I didn't really believe (>30kg packages are not sent with regular mail, and last time I successfully ordered one (not from Galaxus) it took them about 2 weeks to get it to me). But, to my great surprise, the TV was in fact delivered after 2 days!