There's also the usual Apple Upgrade tax, the old charger was 85-90 euros and came with 4m of cable. The new one comes without a cable, is 99 euros and needs a 30 euro USB-C PD cable.
The new one is also much more useful, because it charges any arbitrary USB device: smartphones, tablets, visitors’ PC laptops, miscellaneous small gadgets, ...
Also, if the USB-C cord frays or breaks, it is replaceable.
I’m a bit sad about the loss of the magnetic connector, but overall I much prefer the new chargers.
I still wish someone would get around to putting 2–3 USB-C ports in a power strip which were capable of charging laptops though.
The old MagSafe stuff you could only (legitimately) buy from Apple. The USB-C stuff you can buy from anyone, and there are some decent quality cables and power supplies available that don't require you to pay the Apple tax.
Also, if the USB-C cord frays or breaks, it is replaceable.
I’m a bit sad about the loss of the magnetic connector, but overall I much prefer the new chargers.
I still wish someone would get around to putting 2–3 USB-C ports in a power strip which were capable of charging laptops though.