One thing about WOW that was difficult for me was the need for lots of friends to progress in the game. Is that sort of thing necessary here? Do I need to have 5 or more good friends playing or will I be able to fully experience the game and achievements on my own?
This game is pretty solo friendly...however it's also built to try and get you into teams. It has an option called open teaming (turned on by default) that automatically dros you into teams with other players working on the same missions as you.
When you're not playing with other players though, you get to command your bridge officers as henchmen. They can be geared and have their abilities customized as well. The game also scales mission difficulty based on the number of players.