I don't go often, a couple times a year (strategically timed for Restaurant Week and Waygu & Wine) but when I do go, it's great. Cap Grill will not knock your socks off with innovative food or design but you should know that before going in.
I've had excellent service, weather in the bar or the dining room, by myself or with a group a friends. Personally, I prefer the bar, I'm a casual diner and get unduly nervous anywhere I must speak in hushed tones and remember which fork to use.
The food is precisely cooked and well presented. I enjoy starting with the calamari. It's mixed with fried peppers, so you might be getting squid or hot pepper; unless you're careful it's a surprise. The aioli is a must.
This is the place for a steak (medium rare). And also the home of one of the best burgers (med rare) in town.
Dessert is great - I usually opt for the flourless torte but honestly every thing I've tried has been excellent.