Yes, Zoll life vest was problematic at best. Just challenging with being reminded every day about my condition and difficulty sleeping with it. I had mine for almost 5 months. As for transition to my Biventricular ICD… it was a snap. I have had mine for 8 months. A little sore after surgery but that’s to be expected. Everyone might be different. It was a great relief I don’t even know it’s there and no umbilicals makes life normal again. It was a blessing.