It was one of my search criteria when compiling my HL, which is why I missed a lot of good one's.
In 13 punts, I've done it once - the first one. After that, even when it's available I haven't really considered it. That said, the WG that I started with and whom I've seen since and didn't do it with the second time, even though I planned to, seems to enjoy it. I've promised myself a little treat on my third visit, but only really because I know she enjoys dp (me and a toy) and there is something about it.
Not sure any of that makes sense, but I'm not re-writing it! I've now re-jigged my HL to include WG's that don't offer it because I'm not arsed.....