I went to Springs near Ashby-de-la-Zouch, Leicestershire a few years ago after finishing my MBA - did a 3 night special as a treat - but I have to say although it was all lovely I did feel a bit lonely as everyone else seemed to be in girlie groups ! Lots of mums and daughters and a few hen parties I think.
It was also quite noisy in the late evening as the groups smuggled wine in and met up in someone's room for a girlie night in - so not as quiet and relaxing as I had hoped for really.
Occassionally wonder about doing it now as recovery time from dd - but as it is pretty expensive I can't face paying out NOT to get the relaxation and sleep I crave !