I just bought a new stroller (Mac Twin Techno, still waiting for it to arrive) and seriously considered the Baby Planet Unity, their double stroller.
They are expensive, but so are the Macs. From everything I've read, they are very comparable to them as far as design and functionality goes. I think they are a bit more stylish, though
The only reason I didn't get the BP stroller was because of it's unique handle and my inability to test it out in person first. So I chickened out and stuck with the Mac, since I am already familiar with it.
I tried finding a store near me that sells BP strollers, but according to their website pretty much all local retailers are in CA. So if someone in CA can take a trip to one of these stores to check 'em out, that would be awesome!