So The Citadel is a planet, then there's a Sarah, and now there
Haha, just ribbing ya.
I do have to agree where once you get Liara, it becomes a bit more fun. Her biotics are awesome during intense fights. One problem I had was when you're under fire and Wrex or someone that's pretty much a soldier build continuously pegs you in the back with rounds. With someone that's biotic like Liara or Kaiden, the results are much better, imo. Especially if you're playing the Soldier type.
But the best for me is still playing as an Adept and getting Singularity. Once you get that and Marksman for pistols, it's pretty much over for anything.