I learned from the start on lead-free RoHS solder (doing SMT work) and had zero issues with it. Honestly I've never tried leaded solder as I just use lead-free

I learned from the start on lead-free RoHS solder (doing SMT work) and had zero issues with it. Honestly I've never tried leaded solder as I just use lead-free all the time, though I know people who swear by it.