What are disadvantages of Sarbanes Oxley Act of 2002?

"SOX compliance requires companies to implement several internal controls to safeguard the financial information of a company. Internal controls are specific to each accounting operation. These extra controls created extra processing time to accounting functions and delayed financial statement preparation. Also to meet the segregation of duties requirement, companies must add additional accounting personnel. Finally Increasing the number of audits and accounting firms that must be used by a publicly held company increases business costs"