I've had the following skimmers, AquaC EV180 and EuroReef RS180. I like it better than both in terms of ease of use. It is hard to compare performance since my tank wasn't the same at those times.
The cup is very easy to clean and remove, just yank it off and rinse it.
When you need to clean the skimmer, it is very easily disambled. There are 8 wingnuts you will need to twist.
The location of the water outlet and pump are all adjustable in terms of position. This is very usefull to make it fit in a specifict location.
There is no injector since it is a venturi skimmer, but all the parts for the pump and the venturi are all twist off so they also can be cleaned very easily.