I gotta say I felt kinda let down when I got that Leader Starscream mould in hand. Especially since I paid extra and got the MPM-01 version.
That's the one I have. Aside from the limited arm articulation - and the usual slightly-fiddly Bayformer transformation, which I never seem to get totally right - I rather like it. Enough to keep it instead of selling it on as I'd planned on doing, any any rate.