Well... it's not that big of a loss. It's hard to make procedural generation to feel meaningful. Nobody plays Skyrim for the radiant quests, nobody praises the Binding of Isaac for its level design.
@Tarq: As a tool (Plugin). The main dungeon I was working on in Ace was a randomly generated 200 floor dungeon. When I switched to MV, I was hoping to work on it in MV.
@Chaosian: Actually, I do praise The Binding of Isaac for having randomly generated dungeons. That's what gives it so much replay value. Every run is totally different from a previous run, so it keeps you on your toes every time.