Foam brush finish is the same really, you can do 95% of it with the roller. What I did was do the tricky bits with the foam brush, then run the roller over where I could get to, turned out fine...
Make sure that you really really saturate the roller before you start painting, if not you will get air bubbles, you can get them out by running the roller over again with no pressure atall on it but its a hassle that can be avoided if the roller is saturated...