Jeff, if you're watching archive-ally, then you should be fine with the final seasons.
Mostly all the complaints I hear about them cater down to 'they held us on a string for six long years and in the end we got bullcrap'.
As somebody who watched the whole series in one Summer, I was perfectly fine with the last season.
And the series finale is amazing. It's one of like, two times I have ever cried for a tv show.
In conclusion, unless you like hating on things just because other people hate them, or have delusions of self-entitlement, then you should like the final seasons perfectly fine.
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'Two of the six slides at six flags I assume that is why it is named that for six being its slide number. ' - Whiskey Nick