Pros
good salary, easy work style. good life. It is a very established industry, every area has been researched thoroughly. Therefore any inquiring mind has a lot to learn. The knowledge accumulation can be rapid, especially for new comers.
Cons
hard drive industry is being replaced by solid state drive business. the ship is sinking. WD and HGST merge is a sign of further shrinking of this business. Because HGST produces better hard drives than the original WD, the WD Fremont site is about to close within 6 months. There have been many waves of large-scale lay-off since 2012 (on Fremont site and San Jose site of WD), and many engineers left for better opportunities. The remaining engineers are here waiting for their packages. Some groups become empty, so there are occasionally some openings. The entire WD will shake in the next year. The Fremont site will close in 6 months for sure. The reason is on the area of magnetic head, WD Fremont is far behind HGST and vendors (Headway). The ship is sinking and there is no career chance for anyone.