(((Panthera)))
Good to see you again!
I'd definitely play Gabriel Knight 3. I'm currently playing it (although right now it's on hold due to Botanicula which I can't stop myself from playing). It is difficult, but I've promised myself not to stay stuck more than a day. Then I check the UHS hints. It's a must play for every adventure gamer and I'm told it's one of the best games ever.