I discovered San Want a year or so ago, and if I need to visit Shanghai around the Hongqiao airport location, I definitely go there each and every time. Price is very reasonable, the hotel is very well maintained, and the location is really close to metro.
Service is very good too. Contrary to some other Shanghainese locations, they don't insist to speak English to you when you can do Chinese, which is a proof of respect in my opinion. But I heard them speaking with other customers, their English is fine. They are international-grade, efficient, yet not arrogant (another problem at some other Shanghai locations).
Some of their rooms have the Japanese funny bath - always a favorite of mine. Snacks are free, so is the Internet (at least when booking through Hotels.com).
In the area, there isn't much in terms of restaurants, but if you go up Guilin Road (in front of San Want hotel), and go two or three blocks down, you will find a few restaurants, some very basic (if you like shish kebabs, basic will do just fine), some more refined, but all have cheap beer. The hotel also has a bar - never patronized it though, I like the street food a bit too much ;) There is a 24-hour convenience store on that road very close to the hotel, in case you want something above and beyond snacks (which are free, didn't I say this?).
Two thumbs up!