Open Health will blatantly attempt to get as much out of their frontline workers while attempting to compensate them as little as possible. At first I found the dedication my coworkers demonstrated to be inspiring, but it quickly grew taxing. Early on, you'll be made to feel guilty if you don't open your computer late at night or on weekends to check emails and monitor projects. Eventually you'll realize that the more you exhibit this commitment, the more it will be expected of you. The trick, though, is that you will never be acknowledged or rewarded for your extra efforts.
In the span of about 6 months the following occurred:
1) My client gave us significantly more business as they were pleased with our work
2) On a company-wide meeting, we were told the organization achieved their highest quarterly revenue ever
At that time, I was consistently working 10+ hour days with explicit knowledge that I was paid about as low as I could be for my title/responsibilities. If you try to talk to your manager about feeling overutilized and underpaid, they'll dismiss your concerns.
After 3 years I moved to a similar company and am much happier. You certainly can learn much about this industry at Open Health, but that is only because you'll be tasked with doing much more than your role should encompass and will have to figure things out completely on the fly with little to no support, because everyone is overworked.
I'd only recommend Open Health to someone who, frankly, has no better options in the industry. If you do accept a job here, start applying elsewhere after about 6 months. It likely won't get better.