It was pretty fun, I get why people reeeee about it but honestly it was still fun to play.
The balance was atrocious though and that's what really killed it off for me, everything bad about the M16 from BF3 was brought over to Hardline and then made stronger. Absolutely absurd.
The .300 knockout was OG tho and I'm glad they brought it forwards (or backwards) into BF1 with the Martini.