I think he was talking about HIS sub at the time being barely acceptable, not yours.
The real answer is, it will depend on your room, but generally speaking, firing out into the room is typically better. My Tempest is down firing, so I get pretty good overall response, but one of the front firing 15", front ported subs I tested sounded better firing at the wall. As mentioned, try some different things and see what works the best for you.