costello - it will take time, patience, and probably a good deal of trial and error to find a the right facility for your son.
I might remind you that many homes, businesses, hotels, even hospitals, are susceptible to bed bugs through no fault of their own, and that it can be difficult to remedy - especially on a large scale.
It is also highly probable that you will be able to find a negative review or complaint for any facility you choose. Most people are far more likely to raise awareness and share their opinion when their opinion is negative.
There are lots of bad places out there, no doubt, absolutely, I know plenty of horror stories myself. But that doesn't mean there are no good places.
Besides, it sounds to me that your current situation is not working. So doesn't that make it worthwhile to try something new?
Don't get defeated yet!