Also OOM for me.
Constant juggling act that is tiresome.
ATC is rank rotten also with it's US only voice sets and 18000ft trans alts worldwide and no SID/STAR. (I know you can buy addon programs but my pre flight is longer than my flights these days and I want some out of the box simple functionality and I don't want to use VATSIM.)
Time zones. (Have to fix with external program)
That feeling you get when you OOM on approach after a 2 hour flight and a 1 hour prep for flight........priceless.
Oh, and my favourite VA insists on 1x time, even on huge over water segments, zzzzzzzzzzzzzz.
Still, I love this hobby!