Hello, an IE games veteran, but still quite new to PoE...

I was wondering how many of you have done the TCS achievement? Which classes did you use and what are the optimal starting builds and certain re-trains for later parts?

So far I'm quite far into ACT II with a shield and weapon paladin, soon to get my Sacred Immolation... playing on PotD (not Trial of Iron) as a practice. It's a tough challenge and I sure would do some things differently (like not even buy some figurines as they only last 20 secs now). I feel like I have to cheese WAY too much to stay alive in some fights (Heritage Hill, hello!).

I've finished the game on Hard already with a rogue, which was way too easy (back in patch when stealth/figurines were OP). Is rogue still viable, considering it's much harder to sneak past certain enemies now?