Not many reviews for tyres on a Westfield so here goes;
I replaced my fairly fresh set of Toyo T1R's which were quite possibly the worst tyres you could have especially on a car with 270 BHP per tonne, they understeer and oversteer and were generally terrifying.
I picked up a set of second hand 5 year old PS3's which transformed the car. Even though these were 5 years old they offered more grip, were more comfortable and well priced.
Only downside would be they maybe aren't the hardest of sidewalls, so handling could be slightly better.
The tyres are now 7 years old, and have 6mm of tread remaining, I will only be replacing them with a fresh brand new set next year as these are now past their best - however I am very happy with them considering they were still most likely past their best when I purchased them.
I cannot comment on wet performance as I do not drive this car in bad weather, however I know these are used a lot as wet tyres on track for Westfields and are raved about.
If you cannot get PS4 for your car, these are the ones to have.