Breast pumps

I have both spectra s1 and real bubee and i have to say for the price it’s really a good purchase, and it seems to give me a similar amount of milk produced compared to S1. But downside is that it’s quite noisy and doesnt have a timer so you need to manually time your pumping. But tbh v hard to compare both - for eg if you use real bubee and dont see enough milk produced you might think it’s a milk production problem but maybe it’s just that you need a (better) hospital grade pump. Can consider getting cheaper ones off q10 (new) or carousell (used)? Parts can be repurchased easily.