It does seem confusing to start with, the RED and GREEN and the things you can or cant have on certain days. The Extra Easy plan has removed that confusion. But once you learn whats what on each plan its easy. I just know what weights of things are allowed on certain HE choices and what is or isnt allowed on certain days. So read read read your books and ask away here if your confused.
Think the other thing to get your head around is HOW MUCH food your allowed to eat and STILL lose weight

I am never hungry. I had a look at the WW stuff, and i worked out i could have 24 points, o pointed up my lunch i had the other day that was FREE on SW but 8.5 points on WW!!!!! think i'd hate WW. SW all the way for me

its so easy and not a diet, but a healthy eating plan, suitable for all the family.
It can be expensive, but so can everything. If you plan and shop accordingly you dont have to spen a fortune. I worked out my shop for me and hubby breakfast and lunchs and 3 of us for dinners each day and i only spend £50 - £60 a week including cat food/laundry stuff etc..... each meal worked out to £1.50 each roughly.
Batch cooking and freezing, or having left overs for lunch the next day is a good money saver too.
Good luck x