There is very little that goes wrong with the brakes, no known issues if serviced, whilst the front setup is E30 based, the rear is fitted with larger 280mm disks, whereas the E30 has 258mm, so ensure you specify the correct size if ordering from a 3rd party.
Brake upgrades are not for everyone, as the current setup is adequate. Popular alternatives such as the Brembo upgrades are available. Apart from the obvious braking advantages, they look fantastic between the spokes. Parts are sourced from the 2004 Porsche Boxster, fabricated brackets and an increase of 32mm in disk size to 312×25. Part Numbers are 996.351.425 / 996.351.426.