Don't think you just have to see the one surgeon. It's always best to go through recommendation. Incidentally, Transform are one of the biggest providers of Cosmetic Surgery in this country and have completely turned around their service over the last 10 years, having had bad coverage and reports of bad surgeons and practices.
I wouldn't worry so much about the organisation, but moreso the surgeon. Always research the surgeon who will be carrying out your procedures. Surgeons do not work for transform or similar companies, but on behalf of them.
I've not had a breast enlargement, but have had Liposuction twice, scar revision surgery and cosmetic fillers all with a consultant at Profile Cosmetic Surgery. His name is Lawry Iregbulem and he has had lots of good press coverage and I've seen the work he does with breast implants, all of which have great results.
I received a very personal service and good aftercare from Lawry and his co-ordinator Cheryl and would highly recommend them.
Have a look at the website
http://www.profilecosmeticsurgery.co.uk/