so so [SEP] I am a nail tech and in school was taught to not shake the bottles but to roll the bottle before using but thought I would give this a try. It is kinda noisy but really don't see anyway around it so I am not going to hold it against them. The machine seems to shake itself more than it does the polish. I have found putting a towel under it keeps it from shaking off the table and helps with the noise a little. I have tried regular nail polish and gel polish in this machine and would say that it did just ok with both. All in all I would say save your money, this machine is not really a time saver.