I have just received a new credit card with 0% until October!!!

so the surgery is covered. My wonderful new vet doesn't overcharge either, so the surgery is costing less than I anticipated. Has anyone ever used Solid Gold Berry Balance. I have read good reviews and have started giving it to Bitsy. It is good for struvite stones. But I am wondering if it would hurt her if the stones are the other kind? Any thoughts?? TIA