I cant say that... flavor is ok. easy to build on, build quality great, AND it's A BEAUTY. I'm not sure but I may even use it.
But one thing is for sure, I will not recommend it to anyone cause it's not real MTL.
Take the siren2, for example, you can hit it tight or loose. you have the option to choose (not like in the berserker "tight or tighter")
on the manta RTA you got loose or looser very unbalanced tank, the rest I said in the video.