I have had Blue Swedish. Lovely ducks. They were the first ones I owned and was VERY happy with them. Layed a decent amount. Then got a pair of Runners. They are comical, but very skittish (got all my ducks as grown ducks tho, no ducklings). The hens layed well and a lot. Have a Pekin. She is sweet, and relatively calm. Have a nutty mixed breed. She is a riot. Small, feisty, and not scared of much. I also have recently gotten 4 muscovies. Have to say, wish I had gotten some sooner. They are VERY cool ducks. Was not crazy about the appearance of the drakes, and was on the fence about the hens. But now I think they are some of the most lovely ducks ever. A bit on the bossy side to the other ducks, but LOADED with personality. Very very calm ducks. And they are pretty good layers too. Amusing to watch also.
Use just a kiddie pool for them. Along with a lot of pans of water for drinking and bathing (the muscovies are not big on pool time, but love the smaller pans). They live in a shed at night, very secure, and are penned up in a large area when we are not home, let loose when we are.
They are messy, yes. But easily managed. The shed floor has rubber horse stall mats, which are covered in hay. Easy to clean. Heated water bowl for winter inside, and a bird bath heater in pool in cold weather. Feed Blue Seal Grower Cal, cracked corn in winter, ground oyster shell for calcium supplementation, peas of course, and chopped cabbage and other veggies daily. And in good weather they eat their fill of bugs, etc.
Ok, that is the short version. Others will offer their experiences. Hope some of this helps.