The Britax max safe pro is currently on sale
We're using the Joie Every Stage car seat that my eldest has just grown out of. They're fantastic, been using one in each car for the last 5 years and they both are as good as new. Well worth their money x
I’ve got the britax max safe pro and love it - but I’d recommend joining the car seat safety uk group on fb and giving them info for a recommendation, they really know their stuff x
What sort of centiles is baby? I'd go britax max safe pro if it will fit your car or Safeway M or axkid minikid 2 or axkid move. Those are the ones that are on offer right now. The ones with self retracting tethers are easier to fit.
Do you have the isofix base for the cybex cloud? As the sirona fits onto that and his tested to higher standards
Joie are superb