I have had a magicool pump and It broke after 1 month rma and the second also died.
No things to consider I was on a tight budget and all I could afford, but a pump is something not to go cheap on
Luckily nothing was damaged by the pumps dying on me but do you wanna take that risk?
Second maybe its because I was asking to much from the pump as the magicool pumps have a low lift hight or head room around 2m if memory serves me right
For a single cpu loop one rad probably ok, but anymore gpu mobo ect definitely not. Due to low lift hight
To sum up the pump being the most important part I really would spend a little more if you can, I had 2 pumps in 2 months although I probably was pushing it to much on my one rig cpu gpu mobo. I know other who have also used them and weren't happy.
I may seem harsh and as stated for a simple loop there ample. But 2 pumps changes hassle of draining loops ain't worth it Imo, maybe I was a unlucky guy and got 2 defective pumps but I doubt it
End of the day you get what you pay for
This is just one guys experience not everyone's