I've used two different vacuums.
The first is an Oreck XL Deluxe Compact Canister Vacuum. It's quite powerful, and sucks up poos, hay, chips, whatever...even fleece if I'm not careful! The hose is fairly small, and very easy to manage. I wish it were a little longer, though, so I could leave the vac sitting on the floor while I use the hose on the 2nd level (have to use the shoulder strap for the vac at that point). It's gotten clogged several times - mainly with hay. The vacuum requires bags, which don't hold much. I was going through about a bag a week, and I only have one pig. The frustrating thing to me was that I couldn't tell when the bag was getting full until it was overfull, and the end of the hose would start getting clogged. I don't believe it's a wet/dry vac. It's a nice size, and easily stores out of the way - and even if it's in the open, it has a nice appearance.
The second is a Ridgid 6-gallon, 2.5HP wet/dry shop vac. I started using this one in piglet's cage when we began remodelling the house, as I had it out all the time anyway. It's extremely powerful, even to the point where I can sort of scrub hair out of fleece with it! It does like to suck up the fleece while I'm vacuuming near edges, and I have to hold it down. The large hose is not diffcult for me to use. It's only gotten clogged once, where the hose connects to the base - hay clog. The whole thing is cumbersome to stash away...it just sits in the open since we're remodelling anyway. I've washed out the filter before, and it's easy to do.
I will likely go back to the Oreck once I don't need the shop vac out for other things. It just doesn't look great sitting in the living room
