This isn't the sturdiest or best-made pump I have ever seen but, with reasonable care in use, it should be OK. The gauge reads about 10% low but it is consistent. However, overall and for the price, the pump does represent excellent value.
It's been good so far. Print quality is fine. If it lasts as long as it should, it will be very good value. I was annoyed by the Samsung original which has a 'kill' function meaning that you can't make use of the whole contents. It switches the printing ability off and you are suddenly left without any means to print even at low quality. It may be that this one has to do the same but we will see.