In most cases, you should ask this question before you bought the gun, if you must ask.
But in this case, you'll most likely hear all the good things about it. MX-8 is the shotgun used by most Olympic winners since their introduction in the '60s. Based on my experiences, if you shoot a lot, it's also the most cost effective shotgun.
It's well balanced, great trigger, easy to maintain, mostly owner repairable.
If I can only have one shotgun, it'll be a MX-8.