Well, I had a go and think life may be too short to spend time making sausages!
I bought a manual mincer, which means it needs two people to complete the operation. One at one end, pushing the meat through, and someone taking care of things at the other end!
The sausage casing, although actually quite strong, has an unpleasant feel about it, and is fiddly to initially open it up. If you're a knitter you'll probably enjoy this - it's a bit like unravelling yarn - but slightly tackier!
I have ended up with some nice looking sausages - which actually look like real sausages - but the whole operation was quite fiddly - - - - - shall probably give it another go anyway!