Let's start off with the Kreons. The set comes with a total of 4 Kreons. 2 Transformers and 2 Humans. Wheeljack and Knockout are excellent additions. Both look great next to the other Kreons. Wheeljack comes with a blue translucent handgun and Knockout comes with a purple translucent shock staff. This set like the other comes with an energon piece to collect to form a large energon weapon. Moving on to Wheeljack's robot mode. Umm . . . yeah. He feels very thrown together. The bot mode has a ball jointed head, shoulders, elbows, waist, knees and ankles with the hands being clawlike. The head looks very representative of the character. He scales really good with the other smaller bots. His alt mode also feels very thrown together. He doesn't resemble his G1 counterpart very much. Looks more like a weaponized rally car. Still scales well with the other smaller cars. Moving on to Knockout. His bot mode suffers the same problems. This is a first for him in the Kre-o universe and doesn't really compare to his TF: Prime character model. His face is pretty cool, but doesn't have the feeling of the character. Has same articulation as WJ. His alt mode also does not represent his onscreen model very well. I like that he came with yellow rims though. Overall impression: I really bought this set mostly for the Kreons. Both Wheeljack and Knockout look great. After building both modes for both characters I felt very underwhelmed. Although scaling very well, the characters seemed a little inferior to the previous small character sets. With previous sets we have seen people adjusting the build using the extra pieces to make a more rounded model. With this set it's impossible because the model used very few pieces and there were very little pieces leftover from the build. If your interested in purchasing this, the Kreons are great, but the build not so much.