Orange or Stans

I’m needing to top up my sealant on one bike & new tyres on another. I’d normally use Stan’s , but the Orange sealant seems to look good in the reviews I’ve read . Has anyone got some real world recommendations? – i might give it a go .
Can I just stick it in with the existing sealant too , or will I have to clean the tyres beforehand?
Thanks

I’m in the same boat I need to buy a new bottle, but have been waiting to see how much peaty’s sealant is going to be too. But there is no date when it’ll be out yet.

Been running a mix of Orange standard and endurance in 2 both bikes over the last year, seems to have been goos so far lasted well between top ups. Has sealed good size punctures and cuts quickly and stayed sealed. Have decided to stay with it when built up new wheels. Used yo use stand and prefer orange though is a bit more expensive.

Orange it is then !
Cheers