The Mantis is easy to start, easy to handle, and easy to transport.  We share it between 3 families who live about 12 miles apart and find it very trouble- free in folding up and transporting.  I like the idea that I have control by the pulling back actionI have to use when working in the garden. 

The only difficult part is cleaning out the tines of the Mantis once bigger leaves and/or roots get entangled.  That is partly due to our falult for not keeping our beds cleaner, though.