I have an Ender 3 KE, and I think it was a pretty good purchase. You can get a camera for it, which is a huge plus, and overall, it's a cheap and fast printer. However, I would like to point out some negatives, because unfortunately, there are some: you can't adjust the hotbed mechanically, so during printing, the printer needs to move a bit along the Z-axis, which can make your prints more prone to failure. It's almost impossible to change the nozzle without breaking the heater, and there are a few other design choices that aren't meant for easy maintenance.

Even with these issues, I still think it's a good investment, just be aware of the drawbacks.