Finally got around to opening Starscream, Megatron and Mirage and I gotta say, I'm half/half on how I feel about this line of toys. I've always loved building bricks as a kid and have rejoined that love recently especially with Mega Bloks, but as a Transformer fan - this is somewhat disappointing that the Kreos themselves don't transform.
And the each mode leaves so many spare parts is just annoying, especially when you know that online there have been fan-made toys before that can both transform and keep all their parts regardless of their mode. Perhaps it's a matter of safety or just production costs that factor into why the Kreos don't transform but still, when trying to sell the first impressions are most important (though not always the case).
As a brick-fan, I like it. As a Transformers-fan, I'm disappointed.
EDIT: Oh god the shipping mashed up Starscream's stickers so I'm missing one and the other is completely torn. Oh well, been too long to get a replacement now!