We have one and used it all through my sons babyhood to sterilise (he was formula fed from 6wks) and we are now using it again for the new round of bottles with number 2. We did buy new BPA free bottles this time around.
Its so easy to use and really handy to be able to throw in the car to take away with you. Its rare to go somewhere that doesnt have a microwave! We couldnt live without ours! Love it!