I 100% recommend the 500/590/88 in the 9 shot configurations, and the reliability is second to none. The 88 is the cheapest and lightest, and the 590a1 is most expensive and heaviest. The 590a1's heavy walled barrel is good for keeping the recoil down, bad for target aquisition.
You have to find the balance that suits you. I have the 500 and it's never leaving my collection, but I do wish I had that bayonet lug.
That family will never let you down.
The one in the family that would one up the rest for ME is the 590M Shockwave with some form of legal brace, detatchable 10 round mag, and 14 inch pipe. I haven't dug into the reliability because I simply am not in the market, at the moment, but the size and capacity are head and shoulders above any of the others.