I think of any system being as good as it's weakest link in many respects. The room is like a component--possibly the most important one. If you have a good system, you need a good room. If you have a bose wave radio, well that will work fine in your bathroom. If you have state-of-art system you will likely need a dedicated room that is engineered and treated at the same level. There comes a point when upgrades are almost useless. They will change the sound, but not appreciably and certainly not at the $ per performance level of appropriate room engineering and treatment can do for you.
In a room like yours, that is not simple. I would try to have it acoustically measured. It might not be so bad. It might be terrible. There may be simple things that could be done to improve it, or it may need such radical modifications that you will need to move to a dedicated room at some point.
In a room like yours, that is not simple. I would try to have it acoustically measured. It might not be so bad. It might be terrible. There may be simple things that could be done to improve it, or it may need such radical modifications that you will need to move to a dedicated room at some point.