Im only doing EE, been on it for 2 weeks continuously. And yes still have your syns. No need to be hungry as you can snack on anything form greenm or red instead of wondering what to have. Im not hungry on it at all, feels like im eating 'normally'
I do EE most of the time, red sometimes and green rarely (basically when I feel like having a veggie day which is pretty much never). You definitely can have your syns and you count whichever syn value is lower (ie if something is 5 on red and 15 on green, you go with 5). The only thing you have less of is Healthy Extras, you get one A and one B instead of two.
I actually find it more filling, most of the time, because I get the bulk of some pasta/potato/whatever as well as plenty of protein from meat. If you're hungry it may be that you're being too restrictive in your portion sizes (e.g. if you're used to having a tiny bit of meat as an HEB with your pasta then it can be difficult to believe that you really can now have as much as you need), though it could just be that you've not been having your syns? You also don't *have* to follow the suggestion to have a third of your plate filled with superfree foods, if you find that leaves you hungry (sometimes I find if I have lots of veg it's very filling, sometimes I feel just as hungry as before I ate! And if you do want to include plenty of superfree, remember it's not just veg, it also includes eggs, quorn etc)