These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Badass Decay: Voldemort's not nearly as powerful as he was in the books, possibly justified by him now being in his younger form.
Arguably, he's just as powerful (possibly moreso, now that his soul is whole), it's just that the fear he inspired is pretty much gone.
Crazy Awesome: In one of the chapters, a reincarnated Voldemort attacks the North Pole and takes over the job of Santa Claus. Harry, his kids, friends, and a mind-alteration-proof muggle cop all head towards the north pole to stop him, but the cop calls Stargate Command in order to call in a favor. A battle ensues at the north pole, which is ended when Voldemort's sled is blown up by an F-302 piloted by Shepard and McKay. And all of this- ALL OF THIS- is done in Lego. That's right- the people who made this constructed an F-302, the North Pole, Stargate Command, and the various other locations in the story, all out of LEGO.