Here's a review from another Transformer site on the knockoff WST Constructicons:

Energon Pub • View topic - WST Devastator!

Here you go:

WST Dinobots VS Constructicons on Flickr - Photo Sharing!

 

I have all five, plus prototype version Snarl and the stocking stuffer 2008 set (with G2 Snarl and ice sculpture Sludge) and they are awesome.

My only real complaint was that my Swoop's chest plates were too tight to slide apart to transform him, but loosening the screws on his back with a tiny screwdriver and prying with my fingernails took care of that.

 

I like them and especially if you dont care about scale and cant afford the G1s grab em.

 

They're definitely a mixed bag. Snarl, who was the first, suffers from a loose waist and loose plates (they can fall out). Swoop's torso is difficult to part, and his launchers don't fit into his wing holes easily, but he feels somehow less delicate than the G1 original. Grimlock's head slides forward on his torso, which is a nice enhancement, but his tail is difficult to part and the eye paint is too sloppy for my liking.

On a more general note, the stickers are rubbish, they're badly cut, so I never applied them, and the detachable fists of two of the Dinobots are a pain. However... I think all the swords are chromed, and even Slag's horns are chromed.

They're probably worth the average of $18 they're going for here in my opinion.

 

Yes the quality is great. And they are pretty cool for being so small

 

love them. caveats are accurate, but love em all the same.

 

Yes, I totally recommend them they're great!

 

I think you can grab them with a cheaper price comparing to the TFsource one, but there're also KOs of them out there. (Well, KO of the KO)

 

I love all of them, except Swoop, one arm fell off and the other arm will not go back into its socket, and then there is the chest plate problem.