It is quite easy to service, the hardest part is taking down the undertray, if it hasnt been off for a while sometimes the captive nuts in the subframe start to turn with the bolts instead of the bolts undoing.
Once the tray is off you have easy access to the air filter, about 8 7mm bolts in the osf corner. the oil filter is best done from under the osf wheel arch with the wheel removed and is up under the alternator, I use a strap wrench to undo the housing, dont use a chain wrench, it will damage the plastic housing.
The pollen filter is accessed from inside the glove box, there is a small panel held on with a 20tx screw and then with that out there is I think a 6mm bolt holding a rectangular flap down, with the bolt out flip the flap up and you will see the filter, be prepared to loose some skin getting it in and out.
It would also be worth thinking about changing your gear oil as you have the undertray off, Redline MT90 is the one to go for, its not cheap at about £45 for the 3 bottles you will need but makes a great improvement to the gear change. filler plug is 8mm allen key right on top of the box but make sure you can get the new oil in before draining the old oil out.
And lastly, do you know if the brake fluid has been changed