Haven’t tried out the thrusters yet. Upon arrival one thruster had an oil leak, and the other had a badly-cast prop, it wasn’t sitting true on the shaft, so I ordered a replacement.
I sent in an email mentioning the issues I discovered during the unboxing and Lynn replied quickly - confirmed the oil leak was to be expected as motor equalized pressure, and she said the wonky prop would be fine. But since the prop is readily available, I purchased a replacement that I will install before I actually use the thrusters. Lynn also confirmed there is a 1 year warranty, so that helped ease my concerns.
So far, so good, but I haven’t actually used the product yet.