Great review, I had a similar experience there recently, since they moved to the new location (where Passions used to be which was a really crappy parlour) their service quality dropped significantly. At their old premises I mostly had good punts (or at least good value for money punts).
Avoid. £35 may sound cheap but it is £35 more than what it is worth. Save the money and have a wank instead, if you do it twice then you save £70, with that money the next time you want to punt you can go to GFE, pay £65 for a great time with Olivia, Reagan or Sophie and you'll still have £5 left in your pocket for a pint after the punt.