There is a certain ubiquity that you can expect at bigger chain restaurants like Montana's. You know you won't be blown away by the food or the service but more often than not it is a pleasurable experience.
This is precisely how I would describe this particular Montana's. I've been here for lunch, dinner and drinks and it is impressively average. I haven't had a bad experience here and the food and drinks and have always been good and fair priced.
For what it's worth I found it more enjoyable for lunch.