You’re staying for a week? Once you’ve ridden W2 and Skyline what are you going to do for the other 5 and a half days?*
Conditions: everything is open as far as I know (haven’t been out on the MTB for a week). It’s what you would expect from a trail centre in February: everything is rideable with varying amounts of wet/mud.
Eats: where are you staying? In Cwmafan the Afan Tavern/Jersey Arms is the best pub of a not-very-good bunch – they are friendly and do good pub food in a ‘cheap and loads of it’ sort of way. Dunno about further up the valley Cymmer/Glyncorrwg way.
*there’s probably a week’s worth of riding in the valley if you know where to look. If you’re around over a weekend (and depending which weekend) I might be around to show you some of it if you like…