>>5402061I've got all three that are out so far. They're pretty nice but not without their flaws.
Sludge is solid overall but compared feels a little under engineered compared to Snarl.
Slag looks fantastic in both modes and the leg transformation is a brilliant idea but his transformation (mostly from bot back to dino) is clunky as fuck and has some problems with clearance. It's just not fun dealing with panels knocking into each other constantly. He also doesn't really have much for weapon storage in dino mode. His guns store just fine but I wish there was somewhere for his sword to go.
Swoop is cool but a little weak in dino mode, then again, we have yet to see too many people pulling off good avian transformations that don't make the alt mode look a little awkward.
Their weapon guys are neat with how articulated they are but a little forgettable. Swoop's is probably the best though because he doesn't end up with a giant handle just awkwardly hanging off of his back, sticking out several inches behind him, like the other two do, though it seems with their Grimlock's weapon guy, they finally figured that out so the rest of the team shouldn't have that problem.
All in all, if you like the designs, I'd say they're worth picking up. They aren't perfect but they're really cool.