Been there, done that, got the subscription. It's available 24/7 - I don't have to wait for the "window of opportunity" or run software on my machine, it has the information I need, and everything you need to read about it is there - I was able to find the T&C (an Adobe Portable Document FIle) quite easily. Yes, it's like a cellular phone contract - a one year subscription is a one year contract, so that might feel a bit risky, but I imagine the owner / developers of this innovative venture felt a bit risky for a while too... (likely they still do!)
SO-O-O-O much easier than AA or using some of the work-arounds. ^ Mind you, there are bells and whistles I am hoping for as the service develops, but I've used it to book several flights already, and more than saved the money I have paid already, IMO. (I did think the poor AAgent was going to fall off the chair when I gave the information "I see there are x class seats on flight umdiddy umpty..." but in the end, I saved the AAgent considerable time looking and searching.
Editorial: Why would we begrudge someone with a better idea a way to make some money for a fair and reasonable product?

If you have ten or more folks in your company, you can get a discount, but to pay one subscription for the entire FT board or some ad hoc group, that's a great disincentive for invention and development. How would YOU feel if a group of folks did that to YOUR business? [/Editorial]