Oh yes Filip. This overengineering is exactly the same in Germany
I have the old HC-2 without b, white label. I think i bought it in 2016. For this I bought a new charger 220v (same specs 6V 1A) because the one supplied was really only for 110v. the new plug didn't fit exactly in the HC-2, so i have
cut it off from the original and assemble it on the new 220v. works well.
With the HC-2b, the travel adapter or USB loading is the way to go, I think.
The PWR-56 works with the included power supply (110-220v), but with an new EU cabel.
And definitely buy the CI-1 too. This makes a lot of things easier, transferring files to the LM-3S
I never had a problem with the software. Here in the forum you can sometimes read strange connection problems. But everything works fine for me.
Have converted 7 engines so far. ES44AC, SD60, MP15AC ... some with and some without the original board.