Honestly i hate the new launcher.
When it first loaded i thought the game had been infected with some sort of weird virus impersonating LoL.
The design looks like a cheap mobile app and not even remotely like league.
Also the functionality is very questionable to me. Just like the launcher, the login to the forums seems to have gotten the same treatment and instead of the normal user login you now are apparently additionally bound and locked to the machine you're using for the login, which is simply a grave insult to privacy in my eyes.
tl;dr: The new launcher is ugly and intrusive af.