Well,their reader is certainly annoying but it works well enough, and after I switched from the default strip to horizontal the issues with incorrectly ordered pages vanished aswell.
Basically click middle to show/hide bars, and click sides to switch pages.
They're official and yes it's trash like anything related to official translations from jap.
Yes their site drains your cpu like crazy, but atleast it only does so when you're on the site..
(unlike typical shady stuff that continue acting in the background even if you leave/close the page.)
Yes I'd pick fantranslations over official ones anyday since so far there's never been a decent official translation ever tbh.
(Official ones always took way too many liberties in altering what's said, how much, when and even if something's said.)
Still, linking to an official site that allows you to read for free is definitely a good thing.
And while that site might be using your cpu for something during your stay, it's not really that shady considering..
1: It stops as soon as you leave/close the page.
2: It's the official site letting you read for free.
And honestly considering the lousy work (pretty much normal for any official jap->eng works and related services) on the site it might just be some loops or endless tasks they accidentally created,
just try navigate it and see how many issues/faults you'll find within five minutes. =p
Personally liked that unlike various aggregators, that site didn't create any hidden tasks for me (nor blocked attempts, adblock stopped a few things, ads I guess), neither outside nor inside the browser,
and as such nothing remained that needs to be manually killed off by commands after you left/closed the page.
Got habits of constantly tracking all processes running on the comp, it's amazing how many sites including official ones that'll start up processes completely unrelated to what's shown and as such can kill off without any issues appearing on the site in question, they're usually hidden to some extent too or in some cases trying to mimic something else..
(PID can help determine what's fake in some mimic cases, especially if you kept track of PID's since before.)
If you use googlechrome and comp's getting too sluggish/using way too much ram, the browsers own taskmanager shows PID's that you can compare to the systems taskmanager, any chrome processes that aint shown in the browsers taskmanager can be safely killed off without consequences, and I've lost count on how often I've been doing such things on others computers because they had such draining most of their ram and some cases considerable amounts of cpu aswell,other cases just ram and gpu. (Now those things I'd call shady, especially those trying to look like system processes.) =P