Oh yes! We've been to the real restaurant (several times), the bistro (ditto), the cafe and the chippie.
If you can afford it, do go to the restaurant. It's in the order of �50/head for a main. Pricey, yes (gone up a lot in the last few years) but worth it as an experience and for the food. I'm presuming you do like fish, as that's what most of the dishes are. The food, I think, is the best fish dishes I've ever had. It is fantastic. Be warned, you will have to book months in advance, especially during the summer. Lunchtimes used to be a bit cheaper and easier to get in. It is formal, but not excessively so - smart casual. The staff (when we went) were really friendly and 'ordinary', though the service is top-class. Rick doesn't cook, BTW, and lives across the bay, now I believe, Rock way.
The bistro is cheaper, and more bistro-like (unsurprisingly!) with a wider range of offerings.
The cafe is just average. The chippie we thought way overpriced. We've had just as good F&C in other places, for half the price.