Celery will juice just fine, but for greens I use one of those slow juicers, the vertical version. The celery, raspberry, strawberry and things like kiwi come out better on slow juicers. It appears that “one size fits all” idea is only good for T-shirts, so considering one can get slow masticating juicers for much less then they used to cost there is no reason not to have one as well, so you can make nectar out of spinach and celery – it does taste weird but it is quite nutrition.
This juicer is worth it's value. That said I note that since it is a sintrifical force juicer it seems to make much more frof then other slow grind type juicers and the remining pulp is still wet, so not all of the juice was removed ( or more could have been removed). I do like the eaz of break-Down and and reassemble and it is easy to clean. It is small enough for the counter or storage area. If you are starting out and looking to explore the world of juicing - start right here. Enjoy!!