I started at end January and have lost 24 1/2 lbs.
Whilst it's "good", you need to remember SW (nor WW or anything else) is magic 
I've followed the plan .... But essentially I have cut out / right down on crisps / chocolate / take-aways / pre-packaged meals / alcohol. Not exactly rocket science if I told you I've lost weight by cutting out all of the above, is it?!
I do think it's about re-educating, or re-calibrating your eating habits. For some folk, me definitely, I need the structure of a plan to get me out of the old habit and into the new, the new habit that with any luck (!) will be for the rest of my life. In some ways, not massively different from the logic we use about toilet-training etc with children ..... Break the old habit over a few days / weeks.
I am cooking for scratch every night - I'm not one for batch cooking (single, with a small freezer!) - it may not be exciting food, I joke that my "cooking from scratch" is sometimes only a chicken breast in Cajun spices! But it's not a supermarket ready meal chicken breast in unknown sauce ....
Be conscious of what your downfalls are ...... I love potatoes, and I am hugely conscious that SW does not make you weigh potatoes (nor pasta), nor does it have much in the way of portion sizes (the 1/3 veg on plate is fine, but no mention of what size plate!). So, I'm enjoying losing weight whilst still enjoying my potatoes, but I know that the next stage (stage 1 was cut the chocolate / take-always etc) is going to have to be actively looking at that.