The Puffin browser is currently one of the best Flash enabled browsers in the App Store. Try the free version and see if your site works with it. If it does you can upgrade to paid version.
All Flash enabled browsers work by running the website through a remote sever. This means extra delays. If the service is being heavily used at the moment or your internet connection poor, it can be a less than optimum experience. Which is a long way of saying, sometimes it works ok, and sometimes it does not. ymmv
Go here for more info on the iPad and it's relationship to Flash.
A moderator may close this thread shortly, depending on whether they think there is anything to be gained by leaving it open. At one time the Flash question was generating excessive, repetitive, and overly passionate posts. It still gets several a week.