We've made two separate, concerted, attempts to own, and regularly use, a deep fat fryer. Primarily to cook fish and chips.
The actual finished product was delicious. Beer batter and good jumbo sized cod fillets. Really did get the hang of producing as good a fish and chips as we could ask for.
But, again, we've given up on the idea. The amount of time taken getting the oil out of the can (and waiting for it to cool and then decanting it back into the can), preparing the fresh beer batter and doing the cooking was not inconsiderable, but the time taken cleaning the surrounding area, cooking tools, the deep fat fryer and its filter etc, and the amount of oil that clogged up the hob filter and smell of oil etc in the kitchen....all got too much to bother with. So we drive twenty minutes to the coast and eat it facing the sea, or in the car if it's wet, or in a restaurant, or buy it locally to take away and it's all done and dusted with no mess and it didn't take an hour and a half to clear up.