Not too sure about extras, as I never ask for them. Overall their reputation on this board is they are fairly strict on no extras.
In terms of getting your money’s worth, that is more subjective depending on the person.
Allure is a bit more expensive than other spots, and they recently upped the 40 min session by $20 to $180. Personally I don’t mind cause I only go 1-2 times a month, and I always have a very enjoyable time as I found a MPA that I enjoy repeating with.