Having just been through the process of removing/installing my cowl cover a few times over the course of the last couple weeks... It's not too bad, but don't even bother to try removing the wipers without
investing in a puller like this as they WILL seize to the shafts if not removed fairly recently or coated with anti-seize. With the wiper arms off, you have to get the shit plastic screws out from the front (one will need the DME cover removed), and lastly just grab a corner and start pulling.
Order this kit from ECS and it has it all.