D. Sentinel Prime:
An EXCELLENT figure. I love the throwback to DOTM with his shield. The bot mode is solid and the jet mode is flawless, even from underneath. It was not that easy to figure out his transformation because everything was so TIGHT, but otherwise, it may be the best deluxe in the mainline so far.
D. Alpha Trion:
Look great in both modes, but the transformation is way too simplistic and unsatisfying. Still, a nice nod to Titan Returns Alpha Trion. Also, I find hilarious that the beast mode is horny, and the bot mode is wielding a sword and a dildo as his weapons.
D. Optimus Prime / Orion Pax:
Much better looking than the SS deluxe in both modes, but he's so tiny. He's barely a scout. Why so smol? Plus his transformation is a bit annoying with his arms popping off due to the overtight transformation joints. Plus in bot mode, his wrists would have benefitted from a pin joint because removing the axe from his fist take the whole hand off. This may cause a break if the axe is used too often. This Optimus is the worst deluxe of the 4, but it's not bad enough to be returned to the store.
D. Bumblebee:
Look good in both modes, except for the overlarge feet that leave a big gap in both mode and a huge tail in vehicle mode. His transformation was not too easy to figure out because the arms had to be transformed in a specific order. Appart the small flaws, this Bee is very, very good. The second best deluxe of the four.
1step Airachnid:
Amazing beast/drone mode, but the bot is a bit sad. She have NO LEGS, her dorso resting on a stool. That is my impression. The transformation is simple, obviously, but satisfying.
The overall quality of all these figures are very solid. good paint, tights joints, great look, and they feel premium in hand, compared to the Cyberverse/Earthspark deluxes. My wallet is crying over these purchases, but my heart don't regret it one bit.
