I mix and match different manufacturers quite freely in my Strange Aeons collection.
I have some Dixons in there and they work just fine for me.
The most often used Dixons miniatures are my Asylum Guards
These are Dixons Cops with modified headgear.
Here they are with some other manufacturers, the Guards with clubs are Partizan giveaway figures and the Doctor is from Pulp Miniatures.
I would not shirk from using Dixons again if the model fits my needs.