Got 3 of the scouts and 3 of the legend figures.

The scouts I am quite impressed with. The legends even moreso.

Knock Out - A somewhat newish conversion for a bike mode. I especially like the conversion up front. Still not a fan of the wheel kibble dangling over the shoulders and the panels on the legs, but it's still a well proportioned alt mode and an ok robot mode.

Dead End - Very nice and sleek alt mode with great detail sexy curves. As Dirge mentioned, it can be tough to align the panels and I found that the instructions for those panels aren't sufficient. The bot mode is decent with some pretty cool spindly hands.

Dirt Boss - is my favorite of the new scouts. A great bot mode with good articulation on both arms and legs, although the head is stuck in one spot. Using the forks as a baton like weapon is a stroke of genius and retains a nice solid connection with his alt mode. The conversion is a winner for me. To put it simply it's like turning a sock inside-out. The way the chair and steering wheel folds out and just the sheer small size of it's alt mode compared to a proportionately bigger robot mode is engineering genius. It still has it's faults though but I'm just a lot more forgiving if the conversion is inspired (ala Universe Galvatron). It can be a little tough to align particular pegs together during conversion and can feel a little loose.

All 3 scouts did have a loose ball joint or two. Especially on Dead Ends elbow joints which makes his arms dangle. The forr joint pins are also a little loose. So Hasbro QC strikes again.

Legends Springer - A really excellent robot mode with nice articulation on the forearms and overall a great look. Would have been nice to have knee articulation but I guess cost restrictions prevented that. Conversion is quite graceful and not overly simple. The alt mode is also solid with very minimal robot kibble.

Legends Jetfire - Bot mode has a slightly small torso and the legs may look dispropotionately long in packaging but it has 3 points of articulation to allow you to bend it to it's "proper" position as a "chicken walker." His arms are long withonly a ball joint on the shoulder and his walking stick on his left arm. Conversion is interesting especially for the arms. The alt mode is nice and sleek although there is a lot of visible bot kibble, namely the head sticking out at the back and the arms very visible (not helped by its contrasting silver colour) underneath. But you can't expect too much int his size class.

Legends Optimus Prime - This is perhaps the best Legends class Optimus Prime I've ever laid my hands on. The bot mode is well proportioned with the only real kibble being the large forearms (which resembles the FAB arms actually) but it just makes him look buff more than anything. Conversion is the biggest winner here, with an amazingly engineered transformation that is best left to experiencefor yourself. At this size it's just well engineered. The alt mode itself is also well proportioned and looks highly accurate. With the only real visible kibble being the hand/fists. Otherwise very accurate. I'm well impressed.

There was no official instructions or pictures alluding to having a combined mode for OP and Jetfire. From what I could tell you just peg the two together. Jetfire in alt mode and OP in bot mode. Looks great if just a backpack.