yes, I have something similar (I think the one Tiger has is the biggest/heaviest model)
You can get white cartridge filters now, possibly better than the old pleated cardboard ones, and if you use a bag as well, the cartridge takes much longer to clog, and they are cleaner in use.
It's worth keeping a spare bag handy, in case it gets punctured e.g. by broken brick or screw. The cartridge filters last a very long time.
Mine seems to take a standard cartridge that fits many brands.
The PTO socket is very handy if you are using it with power tools, as the vac starts up when you start the tool.
The blower facility enables you to blow through a hose e.g. out of the window, which creates suction in your workroom and prevents dust being blown about in the vigorous airstream.
p.s.
the plastic hose and attachments are very flimsy, but there are vac parts suppliers on ebay or appliance stores who sell parts to fit.
In wet mode (remove the bag) they will suck out blocked drains or floods from burst pipes.
They are rather noisy.