It's bubble or final 2 tables, depending on the structure and payout. It's a stressful time and tricky to pick your spots whether to attack or get out.
Early game is easy. It's normal deep stack poker, just beware the crazy punters. Final table certainly there is stress and tough decisions, but given stacks often the decisions are simple at least. Well, am I jamming this guy or not? sort of thing.
I love the later stages because a lot of fish have no idea how to adapt their game for when the stacks change and the field narrows. They are still trying to open and call with normal ranges when most players at the table are under 25bb. It's incredible how many players who actually play okay decent poker in the early stages suddenly limp in pre and check-fold the flop with 6bb. I never get tired of seeing that.