Okay, so I find that ST:O is really a good pick-up-and-play game thus far. In this early part it's all about killing Orion pirates, but they never go anywhere alone. Combat is a challenge of strategy - you gotta maneuver to keep your shots in the right shield quadrants, line up torpedo attacks, manage ship power, and use your specials as you need. It's a challenge - the GOOD kind of challenge - to take on an Orion battleship and a couple of corvettes with a Miranda-class (or equivalent movie/TOS class of light cruiser, which you can customize your TNG Miranda to look like). Moreover, when you end up in a system with a few other guys, fleet action makes a huge difference. I just wish there was easier ways to communicate, like a system-specific voice chat channel to coordinate attacks.
I can't wait to keep going, I definitely wanna go for the huge broadside-firin' ship of the line loadout. You can also go for escorts (Runabouts, Defiant-type ships, etc.) or science vessels (buffing, debuffing, forcible decloaking, unique damage) too.
Or just nuclear wessels.