Is my room going to suck

Thanks for the suggestions. Never thought about the long wall but I will try that also. Hopefully I'll get some time to get it all put together in the next couple weeks. Figured I will start with laying just a big carpet remnant on the floor and hanging some 703 panels around the room and in the corners. Maybe hang some flat on the ceiling. I guess one advantage is this is my little space and I can do whatever I want with it. I have a JL F113 sub that I am sure will be total overkill but I'm sure will really pressurize the room :-). Later I want to knock a wall down and that will double the size of the room although will have a single round truss support in the middle. This will have to do for a while since the last thing I need is another big project.

got the descent headphone amp thing goin but can't really get into it unless I'm at work. I have 3 sets of good speakers that I am going to try out down there, winner take all. Losers get sold. No more purchases for a while. ;-)

Update. Moved my gear into the basement. My merlins sound amazing down there. I'm glad they didn't sell when i had them posted. I have some oc703 panels hung around and a little bit of carpet I found. Next step is building some corner bass traps, hanging more 703s, and getting a close to room size carpet remnant. Thanks for the suggestions it turned out much better than I would have thought.