How good is the simmer control? I've heard it gets sticky, and tends to tip the stove? Does it allow accurate temperature control?

Apparently someone borrowed the first part of this from me & incorporated it into their answer. So here it is again & it's still accurate: "Liquid fuel stoves have gotten better @ simmering through the years but they still have a way to go. Lower flame control is still erratic & can burn food if you're not careful. The Nova is a plate burner which is not as simmer friendly as a ported burner e.g., MSR Whisperlite. If simmering is your main priority, consider a canister stove which will also boil water faster."

It can stick a bit while the stove is heating up. Once it heats up, and especially when there is a pot on the stove, there are no issues with sticking or tipping whatsoever. And it simmers like a champ. No burnt eggs, even when using karo!

Liquid fuel stoves have gotten better @ simmering through the years but they still have a way to go. Lower flame control is still erratic & can burn food if you're not careful. The Nova is a plate burner which is not as simmer friendly as a ported burner e.g., MSR Whisperlite. If simmering is your main priority, consider a canister stove which will also boil water faster. From Ray: As I noted in above question: the Nova, like all Optimus Multi-fuel stoves controls the flow of fuel with a needle valve right under the burner: where fuel changes from liquid to gas. I have not used the Nova or Nova Plus in real cold conditions, but the old 111B, which had very similar fuel control would simmer at any temperature. I could keep the flame at a candle flame, then instantly turn it to blowtorch. This feature makes it very fuel efficient. Ray