I disagree. You buy it thinking its great then you find out if it is or not. Like I hate paying for Live and its buggy as crap, drops a lot, the party chat sucks, and its always dropping games. I say it. But I have to pay for it to play online. If you pay and hate, you warn so others don't waste their money.
Plus offers a lot of content free and discounted. So for that I'd vote to get plus. If they don't have things you like, then don't get it. Its still free to play online and get updates as always. I like the games it offers and the deals it provides. So I don't mind paying 50bucks a year when in the long run its saves me hunrdreds. Yeah sony is making money by now selling games to people that normally wouldn't but them, but thats the business model and I am fine with it. As logn as I get me my deals I am good