Hi hun, i’m going with mills and mills, my friend did and hers are amazing!! the surgeon I went to see the other day was lovely and he made me feel at ease and as I am saving a lot of money and still getting the same level of service and also the same high quality implants and cover etc… It’s totally up to you at the end of the day, it’s good to shop around and see what and who you feel most comfortable with.. I’m not sure about the implants just being guaranteed as I’ve got written confirmation that it’s surgery aswell. I don’t know anything about Transform though hun.
Also what size aare you now and what size do you want to be? 310 sounds small but on some people it can have a huge affect on the size difference, it just depends what your starting with.
Hope this helps huni xx