Vortechs are Lamborghinis, expensive and loud, well built and powerful. Very expensive to fix.
Tunze are like BMW's. Engineered to perfection, can be powerful, and a little more affordable to fix.
Jebao's are like Chevrolets. Cheap but will do the job. Guaranteed to only last a short time.
For me the jury is still out on the Gyre's. They move a crap load of water and don't seem overly loud. Cost of parts is unknown, but I am considering getting one.
Maybe take a chance and try something new? What's the worst that can happen?
You can't compare a jebao to a Chevrolet dude !!! How dare you