I did buy the game, and played for my thirty days.
Doesn't look like I'm going to sign up for a subscription. (For one thing, they won't accept the funds in my Paypal account as a payment; they are only using Paypal as a credit card processing service. I really don't like to pay for entertainment with a credit card.)
The space combat is enjoyable, but only if you're playing against other living players. Player vs. Environment missions were dead boring.
Too bad; the potential within the Star Trek intellectual property seems so great.
Thank God I didn't spring for a lifetime subscription....