Used the CPT lounge last night...

I thought it very nice and adequete for such a far flung destination with only one BA flight per day. There were plenty of places to sit, do work and so on. It is also very close to the boarding gates (CPT is rather small anyway). Showers are more spacious that the lounges in LGW (although not with all the fancy sprays and nozzles).

Overall great for a far off station, especially if all you want is a place to freshen up and have a little drink (as opposed to transferring in London, where one may want a little more).