From frying pan into the Fire

So I was the one that posted that I am thinking about leaving nursing. But dutifully I have been working on other opportunities. I have obtained a job at OP Dialysis Clinic with Davita. It is smaller clinic with only 13 chairs, and two shifts with small 3rd. I work M,W,F 12 shifts off every weekend. I shadowed there. To be honest the nurse seemed just as busy passing med to 12 pt. checking fluids and assessing. She got one break during her 12 hr shift. So I took the job because I think it will at least be more predictable than med-surg with admissions and discharges every day. Sometimes i have an 8 bed section with an LPN on med-surg which can be daunting. I actually have started to have anxiety issues, I pray the whole way into my job sometimes. I figure dialysis has to be worth a shot right? Anyone with any opinions? By the way I am having my manager at dialysis put in writing that I get 90day of orientation. Heard it was a problem. Someone help am I making the right decision? I also have another application in at a local hospital with a union for the OR which is my dream job. (Everyone keep your fingers crossed) If I get that job it would be awesome. Any info on OP dialysis would be helpful. Thanks everyone for your support.