Up to you but...
...you may have wanted to have seen her when she was "Shayna" (spelling? anyone else remember) and was less than $200 ($170 sticks in my mind) for a very limited service one hour.
Have to agree she was (is likely still is) good looking but things like, DATY only after a "few" sessions, don't touch "there" unless I say so, etc. etc. made it highly mechanical. Like being a teenager with a great magazine - you know the whole time something is missing from the experience but you go through with it anyway!
Given her name is changed, the rate is higher and time has gone by, I will leave it to your own judgment on whether it is worth the $300 to see if things have improved. Bet she is still pretty though!