The Arion ET-AR504LR-BK is an entry level system, there's no doubt about that. For your average gamer who has a decent pair of headphones and would like to compliment them with a small speaker system for the times when there is more than one person in the room, this is a great little system, because it's built quite well, easy on the wallet and not too bad to look at either.
However, for a more demanding user who wants this as his/her primary audio system, you should look elsewhere as the performance is not going to cut it for day in day out thumping or critical music listening.
Overall, given the green and black colour scheme, attractive price (under $100) and features, I think this system will succeed at getting the customers attention. It's just a matter of how long it's held for.