I really like my GreenStar. Have had it for about a year and juice daily. Just like any machine or piece of equipment, you need to get to know and experiment with your juicer. It does produce some foam which I remove, but a lot...it's a relative term so I'm not sure what your considering a lot. The pulp issue: most juices you do strain even from great juicers. I find that I get about a tablespoon to two of pulp when I use the strainer that came with my juicer. I guess, I don't think that it is a lot. Check you settings and make sure that you are not screwing the end too tight that it is making the excess too dry. Better a little waste for better juice. However, my excess is not very wet.
What are you juicing? Fruits produce a lot more pulp than veggies. I only juice veggies now.