Generally speaking, big 4 experience is valuable in job hunting. Though big 4 experience are not as valuable as top IB, top strategic consulting firm (Mckinsey, BCG level), private equity or assets management, they are generally better than most other industrial experience. If you are interested in future finance jobs, then you should have advantage if you are experienced in corporate finance/transaction services, M&A or IPO audit. Many finance jobs require experience in 1) IB or assets management 2) strategic consulting 3) big four transaction services team.