I'd go so far as to say it was somewhat tolerable with certain mods applied, but that is about it. I think PGI have a fundamental misunderstanding of what Mechwarrior is. They are trying to make it ...

Canonically, the two best ways for IS forces to kill Clanner mechs is at extreme long range (hence why Clan Buster variant mechs typically run Gauss Rifles in plural) or getting fisticuff close ...