I've gone to Insomnia since it really started out as an Internet cafe/resto...then turned into a Fondue joint, and now it is mostly just restaurant.
I enjoy the ambiance. Indeed, for the brunch lover - Saturdays and Sundays are rewarding. You get seated, get your meal, and get out. I haven't tried anything other than the Eggs Benedict at Brunch, and until they mess that up (never I hope), they make it the best in my opinion.