Is this kit everything I am hearing (from various online videos through headphones) and thinking it will do for me?
I don't think it will be a gigantic difference from what I have heard.. but that is a testament to both kits.. .. The Yamaha you will only gain one mm in thickness on both toms AND kick.., so it is not a huge jump but the inner ply I think does definitely have some effect.
If you can get a deal on the Yamaha, which I have seen frequently.. then I would do it just to do it... I am a fan of switching out kits.. trying different things.