Is 3000 watts enough for grinding venison?

Yes. That rating is well above home grinders, so it should handle trimmed venison and pork fat without stalling. Cut meat into strips that fit the feed tube and keep tendons out of the auger.

Does the wattage mean it runs at 3000 watts continuously?

Usually not. Budget grinders often quote a peak or locked-rotor figure, and continuous running power is lower. Give the motor a rest during long sessions, as the manual advises.

What can I grind besides meat?

It handles beef, pork, poultry and game, and with the right plates it can mince for sausage. Hard items like bones, nuts in quantity or frozen blocks should stay out of the feed tube.

How hard is it to clean?

The grinding head, auger, blade and plates come apart for washing, and stainless steel wipes down easily. Wash these parts by hand and dry them promptly; the motor housing should only be wiped.

Will it fit under kitchen cabinets?

It is a full-size countertop grinder, so check the height against your clearance before buying. Most owners store it in a cupboard and set it out for grinding sessions.