I would say healthcare in Vietnam is so-so. There are several international clinics that are good but expensive and the care offered is limited.
Doug RiceThe visa thing can be an issue, if you're going to work for someone here make sure they will help you with this. However, so that you know what you need make sure you research the visa issue on your own. A 90 day visa is not a problem and I saw six month visas being offered through the Vietnamese Embassy in Cambodia, but nothing about one year visas or temporary residence cards. Of course you are probably aware that you need some sort of visa in advance just to gain entry into Vietnam.
Doug RiceIndochina gets into your blood and once you have a taste you'll find it's impossible to stay away.
Doug RiceOverall the cost of living in Ho Chi Minh City is cheap and if you can stay away from Western restaurants and use just local products in your everyday life it's really cheap.
Doug Rice