I can never really decide what I think of 3p. It's an interesting game, but inevitably each person spends many turns feeling like both other players are targeting them. It's stressful.
I haven't felt like that in either of the 3p games, but in both I've felt like I just couldn't manage to score points against one of the other players. In that game, for example, I had a decent score against you, but just couldn't get to the other player. Yet at the same time, she wasn't doing very well and you were clobbering us, so I'd have rather been costing you pieces...but got little benefit from doing so.
Like you said, its interesting, but I think I strongly prefer high form.
Lisa, meanwhile, felt like she couldn't even get rolling; that she was just stuck in a cycle of putting out two pieces and then having two pieces destroyed.