Rogue is missing too many core features to be a stand alone class. I'm not sure if it was always this way, or if Larian backed out of more stealth gaming based on the early access complains (they've changed many things for the worse based on even vaguely related issues -- I wouldn't put it past them).
Fundamentally, melee rogue is suffering from a lack of extra attack to an extent where only one subclass can halfass it. It's difficult to rebalance as currently all roads lead to stealth archer. Greater invis + pass without trace. The rogue class fantasy sees its full potential only when heavily supported by ally spellcasters, which is weird, but where we're at.
I personally found rogue with deathstalker mantle quite strong as a melee rogue starting from act 2. You go around killing anyone in your one-shot range and stay invis the whole fight. By the end game, you should have lowered crit range + pierce vulnerability on every attack with the benefit of not being reliant on any resource. The problem is that this build has never been without issue since the mantle has always been bugged from launch --- and still is...
