For fit, finish and build quality... well I say you get what you pay for. That's why Akrapovic and Arata and some others cost more, and why some cost less. How much importance do you place on impeccable material quality, construction, and design? How much do you place on proven research (racing experience)? If all you want is a fartier sound, don't spend the coin on a higher-quality exhaust. All comes down to personal preference and the budget. Maybe a combination of money spent on a halfway decent exhaust and some suspension mods is the best choice. You'd be amazed at the difference aftermarket suspension mods can make in your enjoyment of the ride. Or maybe some money spent on track days. Point is, if you want the best of the best, it's likely Akrapovic (ok, Strong Bad... OR ARATA). But you're gonna pay for it, and some people couldn't justify the difference in price between that and a less expensive option like Hindle or Two Brothers or what have you.