Season 1 Ortegas was hard for me to like. She was far too cocky for a Starfleet officer, talking back and too informally to superior officers. She felt like she didn't belong in Star Trek, or at least in that kind of Starfleet command structure.
Season 2 Ortegas has backed off from that a bit and is now far more enjoyable. She's got spunk, but she doesn't come off as insubordinate or rude.