Sandra Collins hasn't played trance in years. I saw Sandra and Kswing recently in miami. Collins is worth going to if you like progressive house.... she plays alot of vocals and melodic songs, IMO, great song selection and mixes clean. Dont go if you are expecting her to rock Big Trance athems from the nineties, you will be dissappointed. Shes hot!! Kswing didn't impress me too much, breaky, funky, progressive house, her selection was all over the place... mixes weren't that coherent.. not my cup of tea, but most ppl will probably go for it. But shes hot.... perfecto does a good job of marketing.