Cafe Matina is a cute little spot. The pool tables are a good touch, and it's a comfortable place to spend a few hours.
The food I have experienced I found somewhat disappointing. A sandwich came with no salad or chips as accompaniment. Which is a shame.
The place charges slightly more for coffee than other places nearby, and since the taste isn't all that much the only justification I can think of is the pool tables, and also as other reviewers have mentioned, the airy feeling about the place. They definitely haven't packed too much in, and the room at the back is very spacey.
If you want somewhere quiet to study, this isn't a bad option (again because of the room at the back). But if you want cheap and good coffee, it doesn't stand out against competitors in the area.