Jebo skimmers, yes they are a huge piece of junk.
Jebo, while occasionally putting out a decent product, uses very inferior materials and lacks all the research put into the needlewheel driven protein skimmers. They manufacture all their products in China which cuts down cost, but also quality.
The skimmer in question uses an offbrand pump, that sucks in air through a venturi. This air is then "injected" into the water column and bubbles are produced. The thing that we don't know, is how much air is injected. Most large skimmer companies spend mucho dinero on R&D to get the most air/water mix into their reaction chambers. Deltec, H&S, and Euroreef ALL use patented needlewheel designs to chop any air going into the skimmer into tiny fine bubbles, increasing surface area thus skimming potential.
If you're looking for a skimmer to replace a Prizm, I would go with either the Aqua C Remora Pro, or the Deltec MCE300. The MCE300 is a new product, of which only 25 will be coming into the country in October. It's rated for a 75 gallon tank, uses 6w of electricity, and has a pricepoint of around $255.
The Aqua C Remora is also a very capable skimmer with great customer surface just utilizes an entirely different skimming method. It uses what is called "spray injection" I believe.