* Work under the car: This means you'll need jack stands and a safe, level working area.
* Deal with fuel lines: Working with fuel lines requires care to avoid spills and potential fire hazards. You'll need to relieve pressure from the fuel system before disconnecting the lines.
* Potentially difficult access: The filter's location might make it tricky to reach and maneuver wrenches or other tools.
While there are tutorials available online, it's a job that requires mechanical aptitude and familiarity with working on vehicles. If you're not comfortable working under your car or dealing with fuel lines, it's best to take it to a mechanic. The cost of having a professional do it is likely less than the potential cost of making a mistake.