Prices do not need to be included, some services are taloured to each client on checkout. You're just opening up a can of worms for someone to complain.
The older system worked perfectly fine, allow an option to turn silly options off!
And maybe perhaps in the future you could try beta testing with customers before rolling out such changes.
Had to turn off all notifications because of this complete cluster!
Edit - 25-01-20
So it appears Fresha have taken heed and added an option to Display service prices on email.
This helps us but we don't need times stated either.
Edit - 01-02-20
We still need the option for who the message is sent to. Some of our customers have Mrs as the 1st name, as the firstname is required when creating an client and some customers do not like to be refered as their christian name (people huh!)