You will have the best medical benefit if you work at SunMed. Besides that, that is nothing great about it.
Trust me, our turn over rate is high (this should give you a rough idea )

Which department you will be in? I have been working in SunMed for nearly 5 years, know almost everyone. Honestly, if you arent from medical background, I willl suggest you to work for a while, experience it yourself then transfer to other Sunway BU.