First off, let me nit pick a bit. It is not a Cherry Picker. A cherry picker is a man lift, such as the ones mounted on the bucket trucks used by the electric and phone repairman.
If you're looking for an engine hoist, I got mine at Harbor Freight. The legs fold up for storage, and it has worked just fine. It has stood up to quite a bit of use; I'm guessing at least 8 removals/installs of the 4-cylinder engine and transmission in my old race car, one removal/install of my T-Bird engine/tranny, and a recent removal of a '78 Camaro engine/tranny. Plus some other duty as a hoist to move transmissions and engines around the garage. It hasn't protested yet.
My engine stands are from Pep Boys; again, no problems.