It's difficult to say. Even if I don't play as often nowadays, I still had numerous games where I played the Sicilian with White, played normal moves and Black just kind of self-destructed after some time. That's in the 1400-1600 range. OTB players are definitely a lot more booked up if and they're playing Sicilians, then it's a dangerous weapon at any level, especially with a good coach.
You're free to play it if you like, but it's definitely not an effortless opening.
I don't play the sicilian, thus, I am not familiar with the book moves. Just for fun, I am playing it in Daily game. This allows me to compare my moves with the moves in Explorer while the game is in progress. Just using general opening principles and moves that I know from experience are good moves, I made it to move 9 before the position was no longer in the database. That's about as far as I know the moves for the openings that I normally play in response to 1. e4 (either 1. ...e5 or 1. ...c6). My advice: Play whatever opening you fancy, and don't worry about whether it's suitable for your rating.