The greenstar2000 does a very good job on greens and the grasses as well.The only issue with grass juice is foaming!I keep this to a minimum by applying olive oil to the gears.The cleanup of the gs2000 is easy but more time is needed.My average juiceing time for the gs2000 is 45 min.The average for the breville is 10 min.Cleanup for the gs2000 is 15min. the breville is 7 min..But making wholefood juice with the vitamix5000 takes about 5 min. total.Superfast supernutritious and the most cost effective way to juice.But the juice from the vitamix is not nearly as sweet!I have pictures of barly grass and juice from the gs2000 at ewheatgrass.com under jj43.I purchased my gs2000 at vitalityplus1.com they price match and ship from the west coast and midwest.Good luck and happy juiceing!