I have used all sorts of cleansers from Clinique to REN- I love REN but at around £16 it is pricey- however, I also like L'Oreal cleanser for mature skin- it's gentle- and costs around £3. I have very sensitive skin.
You can get the "polish effect" by using any cleanser. I massage cleanser all over, wipe off with cotton wool pads, then go over it all again with cotton wool pads soaked in warm water- the slight abrasion from the pads gently exfoliates.
I really don't think cleansers are that different, and it's not worth paying £££s unless you are reacting to cheaper ones.
I like REN when I can afford it, as a lot of what you put on your skin is absorbed, and their products are totally free of nasties.