TBH ponds aren't that bad ! I've got a 1200 litre brick built job in mine and the biggest chore is feeding the greedy fecker fish 20 times a day ! You need to keep the pump clean and some of the treatments for the water etc aren't cheap but I love mine. It's lovely listening to the water and watching the fish etc.............really chills you out. Dos need maintenance yes, but worth it in my book

My mums feature was expensive, she paid about £600 IIRC........but it's a proper one if you get my drift