Got my 24/1 today.
Nice model and seems to be more detailed than previous release but im no expert.
The chassis has been redesigned and now has a built in speaker. The headcode boxes are lit via cables connected to the pcb, no more of those copper contacts like on the 25.
Theres switches on the bottom to disable head / tail lights and theres a cab light too.
Quick note with regard to DCC fitting,
The instructions say 6 screws in total to remove the body - I had to remove 10, theres 4 not mentioned in the instructions.
I removed the blanking plug and fitted a lenz silver. The decoder dosent sit flush on the pins. At first I thought id bent the pins getting the blanking plug off but it went back on no issue, but the lenz chip still sits at an angle. However it still works fine.
Under DCC control the lighting for each end can be controlled indepenantly and with the lenz chip its F0 for one end, F1 for the other, F3 shunt mode, F5 cab lights.