When I started I really liked vo2 max and hated threshold because I simply was better and vo2. After some training I see I was not good at vo2, but only bad at sustained efforts.
I have written my experience with threshold block:
If you want some more knowledge about vo2 and threshold, definitely I can recommend empirical cycling podcast from Kolie Moore and evoq.bike blog - you will find there a ton of useful informations that may change your perception
