The Fallen Angel is nothing at all like the Peacemaker. Before the companies split into two they were both in the line up. The Peacemaker has more of a boutique Marshall meets Fender vibe, whereas the Fallen Angel is modern voiced high gain.
I've got one of the pre-split UK made Fallen Angels and it's a fantastic amp that was great value for money. The new Chinese made ones with DSP aren't so well regarded, but I've not played one, so I don't know if this is just snobbery. If you can pick up a second hand one I'd say go for it.