I have a motorised HOB on another tank and the shrimp love it. However, given there is already a motorised pump in this tank (I.e. Plenty of current) I'll probably use an air driven HOB.
There are nine tanks on the rack, ranging in size from 1.5ft to 4ft. All are filtered with a variety of methods in including canisters, air driven filters, sponge filters, HOB and of course the Hamburg-Matten. I tailor the filtration to the shrimp and other organisms that I'm keeping in that particular tank.
Yep the hobby can get expensive but I think it is all worth it.