no regrets - we love it. I can use the HSA funds to pay for things that my regular insurance won't cover (like eye glasses or dentist visits). I think you can even use the funds for things like OTC meds, vitamins and sunscreen, but I havn't done this yet. Make sure to know what your deductible and OOP max/limits are. we have that amount set aside, so that if we needed something, the money would be there. fully funding the HSA is also a nice tax shelter.
loving my dh and our littles (dd ~ 11 yrs, ds ~ 9 yrs, ds ~ 7 yrs, dd ~ 5 yrs and baby brother ~ 20 mo)