They are indeed brilliant. But don't get your hopes up, it's rained up there quite a lot lately and they take ages to dry.
Our original plan was to go to Simonside. This may or may not happen, depends on the timing of the (very) wet weather - which may arrive any time between Saturday lunch time and Saturday night, depending on which forecast you believe!
Edit: Met Office latest forecast says it'll stay dry until sometime betweeen 4pm and 7pm, then rain heavily overnight, followed by sunshine and showers on Sunday.