Both are really good. The Coopers Hefe Wheat kit was really good when it was first ready. It was cloudy like a Hefe Wheat beer should be and also had a subtle background taste of gloves and banana. I drank the batch pretty quickly, but left about 5 bottles. After 6 months the flavors had died off a little and the beer had cleared. But it was still lovely.
The Mangrove Jacks Bavarian Wheat beer is lovely too. I don’t get cloves or banana but it is definitely a wheat beer and also worth doing. You will not be disappointed with either of them. Try one of them, perhaps go for the Coopers Hefe Wheat kit first. Make sure to make it with Wheat DME. I used 1Kg of Wheat DME and 200g of brewing sugar. I primed them both with 180g of brewing sugar before bottling.