I hated to use a whole 1/4 cup of expensive tequila, so I used only 1/8 cup. Also added more red pepper and used about 1/2 cup chopped cilantro--and I added two diced jalapenos to the bell peppers. With those changes, we found the flavor very delicious. Served with corn on the cob and an avocado-grapefruit salad.
This was good, but I think it would be better with chicken. I used precut sirloin strips from butcher instead of full steak. I think the chicken and beef fajitas from cooking light is much better marinade and sauce).