the skimmer is ok.
good points
its not very noisy,big collection cup,cheap,easy to install,it can be hung on the back of the tank or side and it can be put in a sump or inside the tank,you can hide the pump with liverock quite easly.
bad points
the pump has to be in the aquarium or sump,the pump is big,the thing could be a little less noisy.(i can sleap with it but im a heavy sleaper.),the collection cup is hard to take off when you first get it,the pipe that conects the pump to the skimmer is big and fat and it is allways on show.
if you not going to have a sump then you will need to cut the back lid on the juwel tank or any other tank to fit the pipes and the skimmer holder on or just leave it untill you get the sump like me. hope this helps